7-15

Chapter 15: Sisters Fight to Eat Cock and Learn to Bark Like Dogs, Wear Tail Plugs and Wag Their Asses, Use Their Breasts to Wash Master's Underwear 

The Gu brothers fucked the two beauties from morning until afternoon, until they were fucked so hard they couldn't even make a sound. Only then did they clean the beauties' bodies and bring them home from the hotel. 

The sisters were placed on the same bed to rest. Gu Ling looked at their peaceful sleeping faces, feeling elated that he could possess them both at the same time. 

Gu Ran pondered for a moment and asked: "What's next, should we hire a trainer?" 

In Country B, many rich people choose attractive men and women as their sex slaves. Some thrill-seekers even want to turn their sex slaves into beings with no dignity or shame, who obey their masters' every command and do anything to please them. 

Thus the profession of trainers emerged. They specialize in taming humans. It's said that no matter what personality someone had before, after going through their hands, they all end up as dog slaves kneeling on the ground and begging. 

Gu Ran didn't think Song Xueqiao had completely fallen yet. Although she had gradually started accepting being fucked by men recently, she was still far from becoming a bitch. 

She only became more obedient when craving to be fucked. But if he really sent her to a trainer, he would inevitably feel some reluctance. 

Gu Ling smiled playfully. He had recently taken a training course and just received his trainer certification. Now he could use these beautiful sisters for practice. 

He had already prepared a training room and tools at home. Originally he only planned to use them on Song Xueqiao, but unexpectedly gained another top-quality beauty. 

He said to Gu Ran: "No need, I'll do the training myself. You can come watch how I do it later, it's quite fun." 

The two beauties slept soundly, completely unaware of the two hungry wolves eyeing them, pondering how to devour them. 

The two beauties slept for another day and night. When they woke up, they found themselves in an unfamiliar environment. They were now completely naked, with only a blanket covering their bodies. 

She and Song Yu wrapped the blankets around themselves and slowly walked out of the room, surveying this strange environment. 

As soon as they walked out, she saw those two beasts in human clothing walking over. When Gu Ran saw her, he revealed an ambiguous smile. The beauty glared fiercely, thinking she looked threatening, but actually just looked like an angry cat. 

"Get out of the way, we're going home," Song Xueqiao said, feeling both ashamed and angry at seeing them. She had completely lost face in front of them. 

Gu Ran smiled coldly: "Are you planning to go out wrapped in just that blanket? Want to bet you'll attract a huge crowd to fuck you as soon as you step outside?" 

Gu Ling pushed up his glasses: "For you two, there's nowhere safe in Country B now. Rather than going out to be fucked by a group of men, you might as well stay with us. We won't mistreat you." 

Song Yu stood in front of her sister and said: "You should know about Zhi Yue. Unfortunately he's also taken a liking to me. He might be looking for me everywhere now. Let us go, or it won't end well for anyone." 

Without lust, Song Yu's expression was cold and distant, looking like an unreachable snow lotus on a high mountain. 

But the more she was like this, the more the two men recalled her wanton appearance when submitting to them in bed. The strong contrast made them want to violate her even more. Just like when the usually aloof school flower cried and begged them to fuck her, the two men's psychological pleasure far exceeded their physical pleasure. 

Gu Ran's lips curled slightly: "You think I'm afraid of him?" He stepped forward and yanked off their blankets. The beauties cried out in surprise as their alluring bodies were exposed to the men's eyes! 

The brothers forcefully carried the two beauties to the dining table. The table was filled with a dazzling array of food. Song Xueqiao instantly recalled being fucked by men at the dining table before. She felt ashamed, but her pussy involuntarily contracted a few times, already starting to anticipate the men's insertion. 

This time nothing happened. The men just held them in their arms and ate quietly. At most they would occasionally caress the beauties' lower bodies with their fingers. The beauties would let out soft pants from time to time, creating a somewhat ambiguous atmosphere. 

"Have you rested enough? I have something I want to play with you," Gu Ling said after seeing the two beauties had finished eating. He looked at them with fox-like cunning in his eyes. 

They were brought to a room. The room was very large, with thick carpets on the floor. In the center was a set of table and chairs. Many items hung on a rack next to the table. There was also a separate bathroom on one side of the room. 

Gu Ling was mentally reviewing the training process. Song Yu instinctively sensed something was wrong and pulled her sister towards the door to run. But they found the door was locked from the outside. The two beauties could only turn around resignedly. 

The two men approached the beautiful sisters step by step. Song Xueqiao took the opportunity as the men got close to deliver a flying kick. Gu Ran rolled his eyes and quickly grabbed her leg. He yanked hard, pulling the beauty to fall directly onto him. 

Song Xueqiao was furious, but the huge strength difference between men and women meant she couldn't pull her leg back. 

"With that little strength you still dare to hit people? Don't hurt yourself," Gu Ran said, watching her struggle in his arms for a while. Impatiently, he lifted the leg he was holding higher and thrust his hips forcefully against her lower body a few times. The beauty instantly stopped struggling, staring at the man eye to eye in his arms. 

Song Yu originally wanted to save her sister, but was pulled into Gu Ling's embrace. The man's hot palms skillfully caressed her body. She instantly went weak all over, her lower body suddenly feeling empty as her pussy secreted a small amount of fluid. 

Gu Ling used his hand to wipe her juices, then licked his fingers clean. He blew on the beauty's ear: "Why run? You're already this wet. You're even more slutty than your sister. I bet you've been fucked by countless men, and you actively seduced them, didn't you?" 

Song Yu panted softly as she quietly replied: "No... I've only been active with people I like... The rest... were forced..." 

Hearing she had someone she liked, Gu Ling suddenly felt an uncontrollable sourness in his heart. He carried the beauty towards the long table. Gu Ran also brought Song Xueqiao over. The two men sat at the table with the beauties in their laps, caressing them while turning on the projector. 

The projector played a sex video. The woman in it wore cute dog ear headbands and had a huge tail plug in her anus. She was surrounded by several men, barking "woof woof woof" like a dog while using her pussy to stroke their penises in turn. 

The two beauties instinctively turned their heads away, not wanting to watch this obscene scene. But the loud fucking sounds in the video aroused their lust. They couldn't help but turn back to watch carefully. 

Gu Ran played with the school flower's breasts with one hand while pinching and grinding her clitoris with the other. The beauty moaned softly from his touches, gently twisting her body on his lap. 

Gu Ling took some rope from the rack and swiftly tied up the two beauties. The two beauties knelt on the table with their hands tied behind their backs to watch the video. The brothers stood behind them, their fingers alternating between light and hard thrusts into their pink pussies. 

The woman in the video was like a bitch with no dignity. She crawled on the ground to be fucked. When the men ate, she knelt beside them eating the food they spat out. She was even used as a urinal for the men to pee into her mouth. 

The men unleashed themselves on that woman's body as they pleased. The woman had already been fucked until her eyes rolled back, but still had to try hard to make dog sounds. Her body was covered in dense whip marks, clearly often abused. 

Gu Ling said: "The men in this are all trainers. This woman was very disobedient at first, so she was beaten a lot." 

The two beauties were burning with lust from the fingers in their lower bodies. Hearing this, they still felt some fear. They moaned as they looked back at the men's expressions. Gu Ling excitedly watched the beauties' panicked faces. He took two vibrating eggs, set them to the highest intensity, and inserted them into their pussies. 

"I don't want to use violence on you, but you need to be obedient. Come on, bark a few times for me like the woman in the video." 

The vibrating eggs pressed against their g-spots non-stop. The two beauties began panting softly. Their pussies kept contracting, secreting waves of fluid that slowly dripped onto the table. 

The beauties' bodies had become very wanton after being fucked many times. Right now they were in ecstasy from the vibrating eggs inside them. But they still didn't want to make such undignified dog sounds, only panting and moaning non-stop. 

Gu Ling shook his head: "So disobedient." 

He took two tail plugs from the rack. The tails were pure white, with excellent luster and drape. They looked very beautiful, like real animal tails. 

He gripped the base of the plugs and lightly swept the tails across the two beauties' skin. The soft fur brushing their skin, combined with the intense pleasure from the vibrating eggs, stimulated the beauties to twist their bodies and cry out wantonly. Their white asses trembled. 

The man walked behind the two beauties and suddenly whipped their backs hard! 

The snow-white tails struck the beauties' bodies like whips. The skin hit by the tails instantly turned pink! 

The beauties felt pain on their backs as the men whipped them hard over and over! 

"It hurts! Stop hitting! It's so painful..." 

They lay on the table begging for mercy in pain. The men deliberately whipped their genitals and breasts viciously. The beauties' nipples were beaten swollen to the size of grapes. 

Their pink genitals were beaten deep red, their clits standing up high. The beauties cried and wailed non-stop. Their lower bodies felt both pain and pleasure. The tails became wet with their juices. The whipped skin glistened. 

"Woof! We're barking... Please stop hitting!" Song Xueqiao cried and begged. The man whipped her sensitive spots over and over. The beauties' lower bodies first felt a burning pain, but soon the pain faded, leaving only a numb pleasure. Their cries gradually became soft and coquettish. It was hard to tell if there was more pain or pleasure. 

"No talking, just bark like a dog," Gu Ran said as he took a plug from his brother. Together they viciously whipped the two beauties. He struck extremely hard, breaking the skin of the beauties' nipples in just a few lashes. The two beauties cried as they tried to dodge, but he accurately whipped their pussies and clits rapidly. 

The two beauties were whipped until they rolled around on the table. Every time they were struck, they couldn't help but "woof woof" a few times. Their snow-white bodies were covered in red marks. The sight filled one with the desire to violate them. The brothers got more and more excited, increasing the force of their strikes, specifically targeting the beauties' sensitive areas. 

"Smack! Smack!" The tails whipped the beauties' bodies non-stop. They were so scared that they trembled as soon as they heard the sound of the whips cutting through the air. The vibrating eggs in their pussies kept vibrating against their g-spots. The beauties' nipples and clits had gone numb from the beating. They cried and screamed loudly under the dual torture of mind and body, regretting not learning to bark like dogs earlier when the men told them to. 

"Wuwu woof woof!" The beauties' faces were covered in tears as they kept making dog sounds. Their legs trembled uncontrollably. Juices flowed endlessly. Their whole bodies burned with both pain and pleasure. Suddenly the two men shoved the plugs into their pussies and pushed hard. The vibrating eggs were firmly pressed against their g-spots, vibrating frantically, bringing intense pleasure! 

"Ah ah ah!!!" The two beauties' bodies shook violently. A huge wave of juices gushed from between their legs, completely soaking the long tails of the plugs! 

Seeing this, the men pulled out the plugs and aimed at their clits, whipping hard again! 

"Oh~~~!" 

The two beauties were pushed to orgasm by the whipping! 

They panted rapidly as tears flowed, looking at the men with eyes full of fear. 

Gu Ling stopped and gently caressed the beauties' wounds with his large hands. He coaxed: "Hitting you like this, don't you think it hurts us too? If you two hadn't tried to leave, why would we be so angry?" The beauties' bodies trembled slightly as he held them, softly comforting them. 

Gu Ran sighed and kissed away their tears, persuading: "As long as you two do as we say, you won't be beaten again in the future. So be good, okay?" 

The two beauties were held and comforted non-stop by the men. The vibrating eggs in their lower bodies were still vibrating. Their g-spots felt sore and soft, secreting waves of fluid. The men who had just beaten them painfully were suddenly gentle, making the beauties both afraid and happy. They nestled in the men's arms, cherishing this moment of tenderness. 

Gu Ling switched the projector video to the next one. The screen suddenly showed the scene of the beauties being fucked in the hotel! 

He said with a slight curl of his lips: "Didn't your masters fuck you very pleasurably last time? Because you were very obedient last time, you were able to get your masters' rewards." 

The two beauties were turned to watch the video of themselves being fucked. In it, they were being rapidly thrust into by men on the bed. Their faces were full of pleasure as they let out wanton cries, clearly in ecstasy. 

They had just been beaten to orgasm and hadn't recovered from the pleasure and fear. They didn't even realize the men were now calling themselves their masters. 

Gu Ling stood behind them, his fingers thrusting in and out of them, specifically targeting the vibrating eggs each time to stimulate the beauties' g-spots non-stop: "Your masters treat you very well. Even when beating you, we made you orgasm. If you want to be fucked by your masters again in the future, you'll have to actively earn it yourselves. You can't always wait for your masters to coax you." 

The two beauties stared intently at the sight of themselves being fucked. Their lower bodies again felt an intense emptiness. The vibrating eggs felt good, but still couldn't compare to the satisfaction of flesh-to-flesh intercourse with a real person. Their pussies tightly sucked the fingers inside, reminiscing about being filled by the men's penises and frantically taken. 

Gu Ling watched the beauties' juices gush out like springs and continued: "Come on, learn to bark like dogs again. Louder this time." 

The two beauties barked "woof woof" non-stop. Even when they barked loudly a few times, they would immediately lower their voices. The volume remained neither high nor low. They still weren't very uninhibited. 

Gu Ling yanked out the vibrating eggs from inside them and said coldly: "Forget it, you're so reluctant. You two should reflect for a few more days." 

He put gags on both beauties and carried them into the bathroom, stuffing them into two boxes in the corner. The boxes were extremely narrow inside. The beauties were tied up lying inside, their bodies pressed tightly against the box walls, unable to even turn over. 

Two thin mechanical tubes extended from the tail end of the boxes. One inserted into the beauties' anuses and slowly expanded, stretching their assholes into large holes. The other aimed at their urethras and inserted, plugging their urethral openings tightly. 

There was a large hole at the other end of the box, facing the beauties' mouths. The men inserted their cocks through the holes and released into their mouths a few times before leaving. The bathroom lights were turned off, plunging the entire room into darkness. The sisters could not see even a sliver of light. 

The poor sisters were trapped immobile in the boxes, unable to speak with gags in their mouths. As time slowly ticked by, fear gradually rose in the beauties' hearts in the dark, silent environment. 

The two spent three days in total darkness. Though fully conscious, they remained unable to move. Even elimination was done through tubes inserted in their bodies, like helpless living corpses. 

Fear and hunger tormented them constantly. The beauties involuntarily began to miss those two men, hoping they would come release them. 

In the evening, the sound of men's footsteps suddenly came from outside. The sound of a doorknob turning was heard. The men turned on the lights. After the long darkness, the sisters finally saw a glimmer of light. 

They instantly became excited, making muffled "mmph mmph" sounds. The two brothers each brought a bowl of porridge, feeding it to them spoonful by spoonful. With their mouths held open by gags, the beauties could not chew and had to swallow the porridge directly. 

After feeding them, the men inserted their penises into the beauties' mouths and began thrusting. The beauties did not know a small amount of aphrodisiac had been added to the porridge. They only felt their lower bodies gradually becoming empty and their breasts swelling uncomfortably. 

The beauties' pussies contracted rapidly, craving penetration. With no outlet for their intense lust, they could only clench around the tubes in their anuses, their tongues frantically licking the cocks in their mouths, imagining their mouths were their pussies being violently fucked. 

In the days that followed, the beauties remained confined in the boxes. The men would feed them liquid food at mealtimes. Only then could the beauties see a bit of light and fill their stomachs. 

They gradually began to look forward to the men's arrival. Sometimes when they heard men's footsteps outside the door, they would become extremely excited, making muffled cries. But the men only entered to deliver food. The beauties could only have their hopes raised and dashed repeatedly. 

The beauties had no idea how much time had passed. In the darkness, waiting for the men's arrival became their only pleasure. 

Each time after being fed by the men, they would become extremely thirsty with desire, their whole bodies craving to be touched and caressed. But the brothers only used their mouths for release, not even touching their pussies. 

Gradually, they would become uncontrollably overjoyed at the mere sight of the brothers. Their bodies would immediately heat up with desire to be penetrated, like dogs seeing their masters return home. 

A full month passed before Gu Ling and Gu Ran finally released the sisters from the boxes. 

The two beauties became extremely excited as soon as they saw the men. Their faces flushed red and their whole bodies trembled. Their eyes were aroused and frenzied. 

The men washed the beauties thoroughly clean and carried them out of the bathroom. 

"Mmph mmph... Never want to go back there..." The school beauty clung tightly to Gu Ran, still feeling lingering fear. Gu Ran patted her head to comfort her. He tried to put her down on the ground, but she clung to his neck and refused to let go. 

Seeing this, Gu Ling chuckled softly. His large hand roamed over Song Yu's pussy, satisfied to see the beauty's breathing suddenly quicken. Song Yu clung to him and sobbed, acting like a dependent little bird in a way she never had before. 

"Do you understand your mistakes now?" Gu Ling asked gently. The two beauties burst into tears again, nodding repeatedly to admit their wrongs. 

The man walked to the other side of the room, took off his pants, and released his half-hard member. "Since you know you were wrong, crawl over here and lick Master's treasure. Whoever crawls over first gets to eat it first." 

The two beauties quickly knelt on the ground and eagerly crawled towards the man's crotch. Their snow-white breasts swayed as they moved, rubbing against the carpet. Gu Ran took a tail plug from the shelf and followed behind them leisurely, watching their ass cheeks quiver with each movement. 

Gu Ling looked down at the beauties kneeling between his legs, feeling extremely satisfied. The beauties' eyes were hungry as they licked the man's shaft from left and right. Soon they had licked his cock hard as iron and glistening wet. 

Song Xueqiao's palm cupped one testicle, constantly kneading and caressing it. Her other hand thrust into her own pussy, rapidly fingering herself, hitting her g-spot each time. It had been so long since she'd been loved by a cock. Now seeing the man, she wanted nothing more than to pounce on him and have him shove his penis into her hole, fucking her hard and rough. 

Song Yu took the other testicle into her mouth, sucking hard. The testicles were large and swollen - she could imagine how much thick semen was waiting to erupt. With one hand she kneaded her own breast, the other rubbing her clit. She pleasured herself until she was panting and moaning, her lust fully aroused. 

Gu Ran soon walked over as well. He directly inserted the head of the tail plug into both beauties' anuses. The long white tails hung smoothly between the beauties' legs. They looked like two beautiful monsters who had just taken human form, greedily sucking the men's semen. 

Song Xueqiao took the man's entire cock into her mouth and sucked hard. Her eyes were full of lust as she masturbated while making eye contact with the man. The beauty let out soul-stirring moans. She rapidly bobbed her head to deepthroat the man. Four fingers thrust rapidly in and out of her pussy, splashing out a large amount of juices. Gu Ling's cock swelled even larger. He reached out to grab her breasts, kneading them roughly. 

Song Yu had just finished tasting the testicles when she realized the penis was already being monopolized by her sister. She turned and crawled towards Gu Ran beside her, smoothly undoing his pants and quickly taking his cock into her mouth. 

The beauty let out a moan of enjoyment. Her tongue skillfully slid and teased along the shaft. Soon she had licked the penis fully erect. The thick cock filled her mouth completely. Gu Ran groaned in pleasure, his toes lightly probing her pussy. 

The two men were entranced by the beauties' oral skills. They held the beauties' heads and thrust uncontrollably, their cocks entering deep into the beauties' throats. Gu Ran looked at the tails between their legs, feeling an itch in his heart. 

He commanded: "Shake your asses, make circles in the air with your tails for Master to see." 

The two beauties raised their asses high, their waists and hips making large clockwise circles in the air. The long white tails danced non-stop in the air. Their full breasts also swayed up and down with the movements. 

They twisted their waists and shook their hips while forcefully sucking the cocks in their mouths. Their pussies were already unbearably hungry, secreting juices that dripped onto the carpet and immediately disappeared without a trace. 

He sped up his thrusting. His huge testicles slapped repeatedly against the beauty's chin. A small trickle of fluid that the beauty couldn't swallow in time flowed from the corner of her mouth. Her white ass and breasts swayed and bounced non-stop in the air. 

Gu Ling pulled out his cock and slapped the school beauty's face. "Why did you stop? Keep making circles!" The school beauty whimpered and continued swaying her already sore waist, her ass making large circles in the air. 

The man's cock exuded a thick pheromone scent that intoxicated her body and mind. She took the shaft back into her mouth, holding the man's thighs as she deepthroated him. She looked up into the man's eyes. Her passionate and wanton gaze made the man even more excited. He couldn't help but speed up fucking her wonderful mouth. 

The two men frantically thrust their hips, fucking the beauties' mouths. The beauties were unprecedentedly obedient and eager. Even as their bodies were fucked backwards, they still tried hard to embrace the men tightly. Their little mouths pressed against the cocks, sucking and licking with all their might. 

The men fucked faster and faster, letting out wave after wave of low growls. They simultaneously shot large loads of semen into the beauties' mouths! 

The two beauties hungrily swallowed the thick fluid in their mouths, then took the initiative to carefully lick the men's crotches clean. 

Gu Ling panted as he patted the school beauty's head. "Very good, keep it up in the future." The beauty looked at him coquettishly, then suddenly prostrated herself in a doggy position and began crawling in circles around him. 

"Woof! Woof woof!" The school beauty's face was flushed with unsatisfied desire. She crawled while shaking her ass, the tail swaying back and forth between her legs. She looked just like a real dog. She circled the man a few times then stopped, raising her ass high as she knelt in front of him. She used her hands to spread her labia wide open. Her tight pussy kept contracting and relaxing. Her labia were covered in clear fluid, obviously already desperately hungry. 

Song Yu looked longingly at Gu Ran in front of her. She put her fingers together with her palms facing out under her chin. She stuck out her tongue and made "huff huff" sounds, imitating a dog panting. Drool slowly dripped from the tip of her tongue. 

She would occasionally let out a "woof woof", rubbing her head against the man's crotch to act coy. Her ass wagged rapidly, the tail sweeping back and forth quickly on the carpet. 

The two beauties shamelessly imitated various dog behaviors, doing their utmost to please the men before them. Gu Ran squatted down and inserted his fingertips into Song Yu's pussy. The pussy flesh immediately contracted tightly, sucking his fingers deeper. In just a few seconds, it had sucked his entire finger inside. The beauty let out excited pants as she twisted her waist and bounced, rapidly fucking herself on his finger, slamming her g-spot against his fingertip! 

The school beauty had been sticking her ass up for a while, still waiting for a penis to enter. She anxiously shook her ass non-stop. Her pussy involuntarily gushed out a huge wave of fluid. The beauty's lower body was slippery. She struggled to spread open her tender pussy lips, barking "woof woof" constantly, hoping the man would use his cock to satisfy her. 

"Didn't I say before, you need to earn Master's cock yourselves? You have to find ways to please Master if you want to get fucked." Gu Ling reminded them with a smile. The two beauties were suddenly at a loss, not knowing how to make the men happy. 

Song Yu saw the men's underwear that had fallen on the ground. She timidly asked: "Master, can I use my breasts to wash Master's underwear clean?" 

Gu Ran stroked her face and nodded. He asked: "By the way, what's your name?" 

"Song Yu, the 'yu' from 'sweet words'." The beauty gripped his wrist, rubbing her face against his palm affectionately. 

Seeing this, Gu Ling frowned slightly. "I see. But in front of us from now on, you two will be called 'Big Sister' and 'Little Sister'. Don't mention your old names again." 

He took two leashes from the shelf. "Weren't you going to wash Master's underwear? Pick up Master's underwear in your mouth and go wash them now." 

The two beauties had leashes put on them. They picked up the underwear in their mouths and crawled into the bathroom. 

After washing their hands, they filled two basins with water on the ground. They took the underwear from their mouths, wet it, then put it between their breasts. They gripped their breasts and began rubbing vigorously. 

The men's underwear was very clean, with no odor or dirt. It only had a faint musky scent unique to male semen, which wafted into the beauties' noses. 

Smelling the scent of the men's semen, the school beauty's pussy became unbearably empty. She clenched her thighs tightly, rubbing them together. Her soft breast flesh rubbed hard against the underwear fabric. Her nipples constantly scraped against the underwear, using this to get pleasure. Her breasts gradually heated up from the friction. It felt like liquid was flowing inside her full breasts. Her nipple pores began to itch more and more. 

Song Yu was using her breasts to wash the man's underwear when suddenly her hand slipped. The underwear fell into the basin, splashing some water on her. The beauty put the underwear back between her breasts and continued rubbing. She stuck out her tongue to lick the water droplets from the corner of her mouth. Her heart suddenly became extremely excited. She couldn't resist licking the man's underwear. 

As the two beauties washed the underwear, juices were already flowing from their lower bodies, pooling on the ground. They couldn't stop letting out coquettish moans. The men listened with their blood boiling. Their cocks quickly hardened again. 

Gu Ran knelt behind the school beauty. He aimed his cock at her pink opening and suddenly thrust into her flower! 

The beauty cried out in pleasure as she was penetrated. She immediately began shaking her ass, actively fucking the cock inside her, passionately meeting the man's thrusts. 

The thick cock was strongly squeezed and sucked as soon as it entered. The hungry pussy took just a few strokes to suck the glans to her g-spot. The beauty wildly twisted her waist and bounced her ass. She used her breasts to wash her brother's underwear while using her pussy to suck her brother's penis! 

"So good~ Harder! Oh- Don't stop!" 

The school beauty cried out wantonly. Her hands violently squeezed her own breasts, rubbing hard against the underwear between them. Gu Ran was so pleasured he clenched his jaw. He rapidly thrust his hips. His thick penis penetrated through layers of pussy flesh, hitting the school beauty's g-spot each time. 

The hungry pussy tightly sucked his shaft, secreting a huge amount of fluid that soaked his penis. The man held the school beauty's slender waist as he pounded hard. His firm hips slapped her beautiful ass bright red! 

Meanwhile, Gu Ling lifted Song Yu's legs and fixed them at his sides. He stood between the beauty's legs, his penis thrusting rapidly. The beauty held the underwear in her mouth with her hands braced in the water basin. Her lower body was suspended in the air as the man held her hips and fucked her at high speed. 

His long thick cock powerfully pounded her g-spot. She wrapped her legs tightly around the man's waist. Her body swayed non-stop from the impacts. Water from the basin splashed into the beauty's mouth. She took her brother's underwear fully into her mouth and chewed on it hard a few times. She opened her mouth wide to catch the splashing water. 

Gu Ling thrust forcefully. The beauty's ass cheeks shook violently, like a chunk of tender white tofu. The man looked at it hungrily. He lowered his head to suck hard on her ass flesh. His lower body savagely fucked the beauty's pussy. His testicles slapped her pink labia until they turned deep red. 

The beauty's hands shook uncontrollably as she was fucked. Suddenly she lost her balance and her face fell into the water basin. She unexpectedly swallowed a large mouthful of water. 

"Does it taste good? Is it delicious?" Gu Ling asked excitedly, speeding up his thrusts. The beauty kept falling into the basin as he pounded her, her face covered in water as she drank several mouthfuls from the basin. 

Gu Ran watched with great satisfaction as the beauty drank the water she had used to wash his underwear. He slapped the school beauty's ass and said, "Little bitch, bark a few times for your master." 

Gu Ran listened with delight as the thrusts of his hips grew faster and faster, frantically pounding the beauty's g-spot. The school beauty's pussy gushed with juices.  

Her face flushed with excitement as she cried out non-stop, her voice growing louder and louder. Her nipple pores gradually secreted a small stream of milk, all of it dripping onto the underwear on her chest. 

Seeing this, Gu Ling suddenly put down the beauty's legs, sat on the floor and pressed her down onto his lap. He gripped her breasts as his hips thrust rapidly upwards! 

The beauty still had the underwear in her mouth as she moaned "Mmm ahh" from his fucking, her body bouncing up repeatedly. The man could feel the beauty's breasts were unusually full and bouncy, having accumulated a lot of milk over the past month. As he thrust his hips, he poured water from the basin into the beauty's mouth. She swallowed most of it, with only a small amount spilling onto her body. 

Seeing this, Gu Ran pushed the school beauty's head into the basin as his waist moved rapidly, his cock violently pounding her g-spot! 

The school beauty had been moaning in pleasure, but was caught off guard and choked on the water, coughing violently. Her pussy clenched and unclenched, strongly sucking the cock inside. 

The man's scalp tingled with pleasure. He pressed down hard on the school beauty's head as his lower body went wild, savagely pounding straight into the beauty's body. The beauty felt extreme pleasure below but terrible discomfort in her nose and mouth as she was held down coughing in the water basin. 

The man grabbed the school beauty's hair to lift her head, waited for her to catch her breath, then shoved her back down again! 

After several cycles of this, the school beauty finally wisened up. She would take a breath of air when her head was lifted, then hold her breath and drink the water in the basin when pushed down. By the time she had drunk all the water, her stomach was slightly distended. 

"You've drunk all the water in the basin, so use your breast milk to wash the underwear now," Gu Ling said as he fucked the beauty beneath him. He forcefully squeezed the beauty's breasts towards the water basin as his hips thrust rapidly like a piston. The beauty was bounced high into the air, with only the tip of his cock remaining in her pussy before she fell back down to be fully penetrated again. A small stream of milk flowed slowly from the beauty's nipples, all of it dripping into the basin. 

Gu Ran positioned the school beauty on all fours like a dog, pressing down on top of her as his cock rapidly thrust in and out. The school beauty screamed repeatedly as she was fucked. Unable to support the man's body weight, she trembled as she hugged the water basin, lying on top of it. Her breasts rubbed against the cold inner walls of the basin in all directions from the man's thrusts. Her nipples became itchy and numb from the friction, releasing streams of warm milk. 

The basin water suddenly triggered a strong urge to urinate. Her whole body shook and trembled. 

"Hah... hah... I need to pee... Wait... Let me use the bathroom first before you fuck me..." Song Yu panted and moaned, her face red from holding it in. 

Hearing this, Gu Ling's cock swelled even larger with excitement. He gripped the beauty's legs from behind, spreading them wide apart, and frantically fucked the beauty in his arms like he was holding a child to pee! 

"Pee it out! Come on, Master will take his puppy to pee!" He said as he thrust his hips, carrying the beauty in his arms towards the full-length mirror. He repeatedly tossed the beauty upwards, using the falling momentum to make her take his cock deeper and deeper. The beauty clutched her bulging stomach as she moaned non-stop. In the mirror she could see the man's cock rapidly entering and exiting her tender pussy, her breasts bouncing in waves. The sensations of pleasure and the urge to urinate mixed together, making her lower body unbearably swollen. 

The man suddenly used his fingers to spread her labia wide open. The beauty's pussy was stretched to the limit - you could even see the tender flesh inside contracting as his cock pulled out! 

The man's glans slowly ground against her g-spot in circles, then suddenly his hips thrust forward in another bout of intense, fierce pounding! 

Ramming straight into her g-spot! 

"Ahhh! Oh oh! I'm peeing... It's coming out!" The beauty cried out wantonly as she trembled violently, a huge gush of liquid spraying from her urethra! 

The man excitedly sped up more and more, his cock thrusting in and out of her pussy at a speed invisible to the naked eye. The beauty moaned and cried out as she was fucked, pissing non-stop from the man's pounding! 

The air was filled with a faint musky scent! 

Gu Ling watched excitedly as the beauty was fucked until she peed. His lower body thrust rapidly as his fingers pressed against her clit, rubbing forcefully! 

"Oh! I can't... I'm squirting again!" The beauty screamed from the intense sensations. Her lower abdomen released again as her whole body shook like a sieve. Her pussy made "puh puh" sounds as it squirted out a huge wave of juices! 

At the same time, her breasts swelled unprecedentedly, the liquid inside sloshing around as her breasts bounced. Suddenly it sprayed forcefully from her nipples! 

The beauty's eyes rolled back as she was fucked, her face flushed red as her tongue lolled out. Three streams of liquid sprayed out simultaneously! 

Soaking in it, he finally turned her body back around, sucking her milk as he continued fucking her pussy. 

The school beauty had just been fucked to orgasm. Her body was covered in fragrant sweat as she trembled, pussy juices gushing. The thick long penis plunged deep inside, viciously spreading open her tightly clenched pussy as she climaxed, ramming her g-spot wildly and making the sensitive beauty scream non-stop. 

The beauty's milk flowed into the water basin below. With the man's thrusting motions, you could clearly hear the sound of liquid sloshing. Gu Ran flipped her over and pressed her down on the floor, sucking her milk as he fucked her hard. 

"Ah... My breasts feel so good... It's amazing, mmm... My little pussy wants to pee again..." The school beauty panted and moaned. The man's body weight made his cock penetrate extremely deep. His muscular body powerfully fucked the beauty beneath him, the muscles on his back flexing and twisting together. 

The man fucked faster and harder, his cock precisely hitting the beauty's g-spot with each thrust. The beauty writhed wildly as she was fucked, crying out wantonly. Her hands flailed about, leaving scratches on the man's back, spurring him to thrust even more frantically! 

"Ah..." The man grew even more excited from her scratching. He let out a sexy groan as he viciously bit down on the beauty's nipple, his lower body thrusting forcefully a few times. 

He pushed the beauty's legs upwards, folding her body in half. His hips pressed tightly against the beauty's ass as he pounded hard! 

His lower body moved extremely fast as his palm viciously slapped the beauty's clit, making that bright red nub swell up high. The beauty felt both pain and pleasure. Her lower abdomen tensed as the urine in her bladder could no longer be held back, suddenly spraying out! 

The beauty's pussy contracted wildly, forcefully sucking the cock inside. A jet of liquid sprayed from her urethra onto the man's lower abdomen, soaking his crotch. 

The man panted as he gently caressed her swollen clit, then suddenly pinched it hard before thrusting even more fiercely! 

The beauty trembled like she'd been electrocuted, the intense pleasure making her eyes roll back. She moaned incoherently as urine and pussy juices sprayed from below. The man brought her to orgasm once again! 

The man's breathing grew heavier and heavier. His cock rapidly entered and withdrew from the beauty's pussy. His powerful thrusts nearly flipped the beauty's entire body over. The beauty was violently fucked through her orgasm, her whole body convulsing as drool flowed from her mouth and waves of juices gushed out. 

The man gripped the beauty's thighs and pressed down non-stop. The beauty's knees squeezed her soft white breasts, making it hard to breathe. The man thrust continuously over a hundred times before suddenly letting out a beast-like roar. His hips pressed tightly against the beauty's ass as he trembled, thrusting forward again and again. 

The school beauty's tongue stuck out as she trembled non-stop, looking like a ruined sex toy. Cool semen forcefully sprayed against her g-spot. He ejaculated for nearly a full minute. Before the beauty could catch her breath, another large gush of hot liquid flooded into her. She twisted her body mindlessly as the man pressed down on her, joyfully urinating inside her body. 

The two brothers both ejaculated and urinated inside the beauties' bodies, repeatedly swapping positions to enjoy both beauties. The sisters were fucked in various positions non-stop, their bodies covered in sticky fluids. They had orgasmed countless times. 

When the two beauties were filled to the brim, their stomachs bulging like pregnant women about to give birth, the men finally inserted vibrators into their pussies and pressed the beauties' heads down to fuck their throats. 

The bathroom was filled with the sweet scent of breast milk. The two beauties knelt on the ground, gripping their own breasts to wash the underwear. White tails hung between their legs as thick vibrators rapidly rotated against their g-spots. The beauties' legs trembled as their mouths were used like fleshlights, passed back and forth between the men. 

"Bitch, wash your master's underwear clean." Gu Ran thrust rapidly in Song Yu's mouth as he watched her wash his underwear. The beauty's eyes were unfocused from being fucked as she weakly soaked her breasts in the milk and gently rubbed. 

Song Xueqiao had already passed out. Gu Ling stuffed the underwear in her mouth, using his shaft like a pestle to pound inside. The milk that splashed out was unconsciously swallowed by the beauty. The two men wildly relieved themselves in the beauties' mouths, rubbing their lips red and swollen. 

After a night of debauchery, the brothers washed the beauties' bodies. All four lay down on the same bed and drifted off to sleep.