The Summer Rental - Part 5

Click here to read the previous parts of the story.

As it turned out, floating down a river in an inner tube while enjoying beer and the company of your wife, sister, and brother-in-law was just about the most relaxing thing in the world. The water was cool but not cold, the beer was cold and quite good, and everyone was exceptionally happy, which made the conversation flow with ease.

Of course, Christian knew why they were so happy. He knew that they'd indulged in a threesome while they thought he was gone. He knew that his sister was so much kinkier than he'd ever imagined, and that she seemed to share the same kink as Christian, which still blew his mind. He couldn't help but hear the words his sister had uttered while Christian spied on them. He heard Marie telling her husband to cum in Ruby's pussy. He heard his sister practically begging her husband to cum inside another woman. The whole thing was mind blowing and it contributed to the unyielding low level arousal that Christian felt during the entirety of their float down the river.

Adam managed to stay sober enough to drive, so after the long float and the shuttle bus ride back to their car, he piloted them home while everyone sang along to the road trip playlist someone had put on. It was a joyful end to a truly joyful afternoon, and as they pulled into the driveway at the rental house, Christian was riding high on that joy.

"That was an exceptionally good idea, Marie," Christian said as they all got out of the car. "Thank you for doing the research. I had a damn good time and I'm not sure I've ever been so relaxed."

"I know, right?" Marie replied. "There's something about floating down a river that just feels so good."

They grabbed their stuff out of the trunk and headed inside. There was talk of dinner and the mention of a potential nap and eventually they settled on taking a quick nap - floating down a river, as it turned out, could be tiring, too - before going out to dinner together.

They headed for their bedrooms, but Ruby didn't seem interested in a nap, for the moment Christian stripped out of his bathing suit she pushed him into the bed and straddled him. Her bikini bottoms were still wet and they felt chilly as they settled against his flaccid cock while her hands rested on his chest.

"I saw you looking at me while we were floating down the river," she said.

"Oh yeah?" Christian asked.

Ruby nodded and leaned down to kiss his neck. Her lips were soft and a little damp and she let them linger against his skin for a few moments after each and every kiss. She moaned a little, too, expertly luring him into a state of desire that had his cock throbbing as it pressed against her bikini.

"I could tell you were turned on," she said softly. "I could tell you wanted me."

"I did...I do," Christian admitted.

Ruby backed up and dropped her head into his lap. She took his cock in her mouth and sucked vigorously before swallowing almost all of it, seemingly without much effort. Christian moaned at the explosion of pleasure going off between his legs and then he watched his wife step out of the bed, take off her bikini, and climb on top of him once more, this time without a stitch of clothing on her beautiful body.

He hoped - desperately - that she would sit on his cock, but she didn't. Instead, she crawled forward and settled across his chest. She leaned back and reached down to spread her pussy lips. She was wet - exceedingly wet, even - and Christian's mouth watered at the prospect of getting to taste her.

"Would you like me to sit on your face, baby?" Ruby asked.

"Yes, please," he answered.

Ruby crawled forward and perched her pussy over his face. Christian stared at her swollen clit and her plump labia and lifted his head from the bed to try and taste her. Ruby gently pushed on his forehead and said, "Not yet." She plunged two fingers into her pussy and pushed them deep as Christian listened to the sounds of wetness emanating from her.

"Please sit on my face," he begged.

Ruby smiled, pulled out her fingers, and sucked them cleaned for a few moments before dropping her pussy onto Christian's mouth. He pushed his tongue inside her without hesitation and she moaned while slowly rocking her hips back and forth.

"Mmm, that feels so good," she said softly. "I love how much you enjoy my pussy, Christian."

He loved her pussy. He was especially fond of it after she'd been with her brother-in-law, and though he'd watched the threesome many hours ago at that point, it felt exceedingly kinky - and hot - to be licking the same pussy that his sister had licked.

"Your sister enjoys eating my pussy almost as much as you do," Ruby said.

Christian's eyes went wide as Ruby dropped more of her weight onto his face, smothering him with her pussy and making it impossible to talk.

"I know you were watching, Christian," Ruby said with a smile. "I know you saw us having a threesome. I know you saw that your sister is a lot like you. She gets off on watching her husband fuck me almost as much as you do."

Christian put his tongue inside her. He put his tongue as deep in her pussy as he could. He put his tongue where his brother-in-law's cock and his sister's tongue had been.

"Did you stay long enough to watch your sister eat my pussy after Adam had cum so deep inside me, Christian?" Ruby asked before lifting her pussy from his face.

"No...did she really do that? Did Marie clean your pussy?" he said.

Ruby smiled and nodded. "She did. She loved it, too. She was so turned on. She was moaning as she did it. She fucking loved eating her husband's cum from my pussy, and I loved it too. She made me cum while she did it. I came on your sister's tongue, and it was so fucking hot."

Christian grabbed her ass and pulled her down onto his face. He needed to eat his wife's pussy. He needed to make her cum. He had to.

"She found out what Adam and I were doing after Christmas," Ruby explained. "I don't know how, but she noticed he was different, that he was happier. Somehow she got him to confess, but your sister wasn't angry, Christian. She was turned on. She loved that her husband was fucking another woman. She loved that her husband was pumping his cum into another woman's pussy. She loved that another woman was making her husband cum so hard."

Christian reached down to grab his cock but Ruby caught his wrist.

"No masturbating," she said. "I'll make you cum when I’m ready." He let his hand fall to his side as she began to ride his face. "That first day, when Adam and I fucked on the deck, Marie knew what we were doing. You both knew what we were doing. You were both turned on by it, too. When you got home, Marie took her husband to the bedroom and sucked his cock. She sucked the cock that had been inside another woman's pussy. She sucked him until he was hard as a rock and then she took him for a ride. They fucked just like we fucked. They got off on the same thing we got off on. Your sister is just as dirty as you are, Christian, and I fucking love it."

Ruby leaned down, grabbed a handful of his hair, and rode Christian's face aggressively. She ground her clit all over his lips, chin, and tongue and got herself to an incredible orgasm that left her body trembling with pleasure as sweet juices leaked out of her.

Ruby sat up, leaned back, and smiled as the pleasures of her orgasm came to an end. Christian's tongue was still in her pussy because he couldn't resist. She tasted so good, and he couldn't quite get over the surprisingly kinky pleasure of licking the same pussy his sister had licked.

"You liked watching, didn't you?" Ruby asked.

"Yes," Christian admitted as she climbed off his face and laid next to him. "I was about as surprised as I'd ever been when I looked in the bedroom and saw the three of you. It was...I mean, it was stunning. Genuinely stunning. But it was just so hot. That probably sounds kind of crazy. Maybe that sounds completely insane, but it really was hot."

Ruby leaned closer and licked some of the juices from his chin before slipping her tongue into his mouth. Her fingers encircled his cock - which was soaked in precum - and she took a tight grip and stroked him slowly. "You're not crazy. It was hot, Christian. As someone who was there, who was a part of it, it was exceptionally hot."

"How did it happen?" he asked.

Ruby smiled. "I was going to shower to get ready for the day after you left. I was actually just a few moments from getting in the shower when Adam stepped into the bathroom. I panicked at first. I knew Marie was in the house, so it seemed way too risky. Then he took me in his arms. Those big, strong arms of his. He held me close and he kissed me. I melted, Christian. I melted the way I always do when I'm with him. I got so turned on I stopped caring if Marie was in the house."

More precum dripped from the tip of his cock and Christian delighted in the sounds of a wet handjob as they filled the bedroom.

"I got on my knees for Adam," Ruby continued. "Right there in the bathroom. I took his pants down and took him in my mouth. I gave a beautiful, slow blowjob."

"Like the one you gave in the shed at Christmas?" Christian asked as he thought of the very first time he'd found out about his wife's affair with their brother-in-law.

"Yes, like the time I sucked his cock in the shed," Ruby said with a smile. "Though I didn't intend on having him cum in my mouth in this instance. I intended on hopping on the bathroom counter so he could fuck me, though I would have let him take me from behind, too."

"I love that you enjoy fucking him so much," Christian said. "I love that his cock brings you so much pleasure, Ruby."

She kissed him softly. "I know you do, baby. I love it too. That’s why I got wet sucking his cock in the bathroom. I got wet the moment I took him in my mouth and looked up at him. We never got to the part where he fucked me on the counter, though."

"Why not?" Christian asked.

"Because your sister walked in," Ruby explained. "She walked in and looked right down at me as I sucked her husband's cock. I panicked, but she wasn't angry. In fact, after that initial panic spread I could see the same look on your sister's face that I've seen on yours. I could see that very particular kind of desire that comes from witnessing the person you love being with someone else."

"What did she do?" Christian asked.

Ruby tightened her grip around the tip of his cock and stroked him swiftly for a few seconds as Christian's loins tingled with pleasure from his wife's skilled touch. He felt the very beginnings of an orgasm building right as she relaxed her grip and slid her fingers down his shaft and over his balls. "She kissed Adam and told him that it looked like I was making him feel so good. They kissed again and then he told her to get on her knees with me."

"Oh, fuck," Christian said.

"I know," Ruby replied. "Your sister did as he instructed. She got on her knees next to me. I wasn't really sure what to do, but to be honest, I found the whole thing so arousing that I made room for her. I moved over a little and we worked on pleasuring his cock together. She sucked his balls while I sucked on the head and then we switched. I sucked on his big balls and she offered pleasure to the head. Then we kissed and licked and sucked the head together."

"You did?" he asked.

Ruby smiled and rubbed her fingers over his taint, moving them in slow circles and applying enough pressure that it felt remarkably good. She leaned in, kissed his neck, and whispered, "I sucked cock with your sister, Christian, and it was so fucking hot."

Had she been stroking him in that moment, Christian was certain he would have cum. He felt his dick swell up with pleasure and looked down to see that the head was absolutely bigger than it had been before and that it had turned a shade of blue as more and more blood rushed to it.

"After the blowjob - which had Adam's cock just about as stiff as yours is right now - he took us to their bedroom. We didn't talk about how long Ruby had known or whether or not it was smart to have a threesome. We just did it. And Adam took control, too," Ruby explained. "He had Marie get on her back and he told me to sit on her face."

"Holy shit," Christian said. "You sat on my sister's face?"

Ruby smiled and nodded. "I did what Adam wanted. I sat on Marie's face. I fed her my pussy. She put her tongue inside me while her husband told her she was making him so happy. He told her she was getting my pussy nice and wet for his cock. He told her to make sure I was soaking wet for when he slipped his big dick into me and fucked me while she watched."

Ruby ran her fingers along the underside of Christian's cock and he shuddered at the pleasure of her touch. It was delicate, but it was also more than enough to make him twitch with desire.

"Adam had her suck his cock before he took me," Ruby said. "I was on my back and he was between my legs. Marie laid across my stomach, parted her lips, and took his dick in her mouth. Adam had me push on the back of her head to drive him into her throat. Christian, baby, it was so fucking kinky, so wild, so hot."

Christian wished he could have seen that part, for it sounded every bit as wild, kinky, and hot as Ruby described.

"Then he fucked me," she continued. "He fucked me and they talked dirty to each other and to me. They kissed. I kissed Adam. I even kissed Marie."

"What kind of dirty talk?" Christian asked.

"Marie asked him if my pussy felt good, if it was making his big cock feel good," Ruby explained. "Then she asked him if my pussy felt better than hers. He told her it did, Christian. He told her my pussy felt tighter and wetter than hers. I swear, your sister almost came when he said that. She's so much like you, Christian."

Christian would have cum half a dozen times already if Ruby hadn't been judicious with the pleasure she offered, for every word she uttered proved astoundingly hot.

Then, to his surprise and delight, Ruby straddled him and took his cock in her pussy. She swallowed every inch and slowly moved back and forth as he closed his eyes and smiled at how good it felt to be inside her.

"We were in the midst of that when you started watching," Ruby said. "You did a pretty good job of hiding in the hallway, but I caught a glimpse of you. I liked that you were watching, though. I liked that you got to participate in the fun I was having."

"I liked watching," Christian replied before groaning at the intensity of the pleasure building between his legs. "It was so fucking hot, Ruby."

"We're planning on doing it again tonight," she said. "You could watch us. We're going to fuck in the living room, in fact. We're going to do it after you're asleep. We're going to sneak down there and Marie is going to watch and participate as Adam fucks me. They don't know you were watching, but I don't think they'd mind if you joined us, Christian. You could get in on the kinky fun. You could watch your sister eat my pussy and suck her husband's balls while I ride his cock. You could stroke your dick and enjoy the show."

Christian came inside his wife as he thought of joining in on the fun she described. The kinky thrill of it was too much to handle and despite the lack of vigor in the sex they were having, the stimulation was more than enough to bring him to a thoroughly satisfying orgasm.

"Is that a yes?" Ruby asked.

"Yes," Christian said. He had no idea if he'd actually enjoy himself, but he was damn sure going to try it.