At home, on the night of the day Luna made her feel what a truly huge cock was like, Agatha couldn't sleep and kept turning from side to side in bed. Her ass still hurt from the anal spanking she had received, but besides that, her body was too hot with her still-present arousal.
— Shit! What did that nerd with the giant cock do to me? — She sighed like a moan, followed by sliding her hands inside her pajamas. — My pussy won't let me sleep! The taste of her cum is still burning in my mouth! — Soon her fingers were already dragging inside her wet tightness. — COME FUCK ME AGAIN!!! — She moaned through her teeth, as a squirt fell onto the bed under the sheets. Her red face showed her overwhelming pleasure as she remembered the taste of her futanari lover's thick cum!
...
The day after having incredible sex with the hot Agatha, the four friends started their days at the gym, getting ready to start running.
— Hey, Luna! What do you want to sleep over at my house tomorrow? We were planning this last week, but given what's been happening lately... — Kate asked in a relaxed manner, but still trying to hold herself back.
— She's afraid that we'll end up fucking and being caught by her parents. — Ellie said, making Kate's fears clear, which made her feel embarrassed.
— It's a natural fear. I don't think we'd keep quiet. — Mika, also a little embarrassed, added.
Luna was apprehensive and kept quiet. She saw the casual way in which all this was said, as if they could no longer do anything together without ending in sex, screams, sperm flying... Everything had become so focused on that, and even if it was good, really good, it was something too dirty to just happen all the time.
— What do you think about sleeping at my house this weekend? — Luna proposed, which surprised her friends.
— Oh, really? Well, it would be the first time in all this time. — Kate, still with a serious and surprised expression, commented, but her eyebrow raised. — But tell me, do your mothers... know what we do?
— Well... — Luna looked away, her face already red, her shoulders shrugging in slight embarrassment. — I tried not to talk about it, but they noticed my strange way of acting. — She slid her hand on her arm.
The three reacted with some embarrassment, Mika even more so as she looked down in fear. Composing herself, Kate returned to the questions.
— But about Agatha too? — She raised her eyebrow.
— Well, I arrived with a silly smile on my face yesterday, so I ended up telling them, or rather, they deduced it. — Luna explained, and continued. — My mother, Angela, noticed first, and then I told them. They were particularly... calm, because I lost my virginity to a girl like Agatha, I mean...
— A big-assed cow? — Kate raised her eyebrow again.
— Well, you could say that. — Luna smiled, shrugging her shoulders again. — The reactions were almost the same, just in different intonations.
And indeed, Angela said:
— That practical blonde? Oh, she has a big and beautiful body. I hope you have a lot of fun. — Drinking her coffee with a subtle smile of pride.
Darla, in turn, was more... emphatic:
— OH MY GOD!!! MY BABY IS NOT A BABY ANYMORE!!! Soon he will be fucking big-assed girls and making them his sluts! This is so unfair! It went by too fast! — Hugging Luna's head in a shameful drama with a crying voice.
But in the end, there wasn't much to discuss. Luna was responsible, trustworthy and a good girl. If anyone could bring girls home, it was her.
— Your mothers not only seem nice, but they really are. It must be common for futanari to trust their daughters. — Ellie commented.
— So... at your house on Friday. It's set. — Kate slammed the gavel.
A whistle was blown, and soon the teacher was calling the attention of her distracted students. In an instant, the woman with a wide waist, huge breasts and a big fat ass was approaching the four friends. Her green eyes tried not to focus only on Luna, but she failed to not be captivated by the shy little blonde, whom she had already seen in “action” in the locker rooms last Friday.
— Get messed up, girls. There are 10 laps today, and I want to see you sweating a lot. — She warned, with a friendly smile but that conveyed an authoritative air.
They, like the other students, obeyed the orders and continued to the race. Misty watched them all carefully, as if she could see her dirty thoughts taking over. She knew Luna was different from the others since the principal had said she could wear baggy pants during her exercises, even though all the girls wore shorts to make it easier to check the muscular development of their legs, but given the huge mass of futanari meat she had among them, that thing would indeed be out of the small shorts the school offered. Even so, the mark of the huge cock, even flaccid, would be on those black pants. She must have been holding it with elastic bands.
— Teacher Misty. — A voice brought the teacher back to reality, ending her dirty thoughts.
— What's wrong, Magali? I'm busy checking the students. — Misty changed the subject, pretending to be focused on the general situation.
— Sorry to bother you. — The senior student, Magali, a tall girl with green hair, light brown eyes and an incredible body. Her breasts were big and round, pressing against her blouse held up by her black and blue checkered overalls, just as her black skirt was huge. — I just came to tell you about my absence from the last few classes. I had to take care of my little sister.
— It's okay. I'll consider it an absence out of necessity. I hope she gets better soon. — Misty smiled affectionately, soon turning her face to the girls running.
Magali also watched the girls running, the skinny little ones doing their best to finish in the best possible time. Most of them were doing well, but behind them all were a very thin and out of shape black girl, a red-haired girl who was also skinny, but with a little more body, a chubby girl who actually seemed to be struggling to breathe, and... Luna.
— The futanari is faking, have you noticed? — Magali said without changing her expression, still serious as when she arrived.
— What? — Misty asked in surprise. — How do you know? Better yet... how do you know she's a futanari?
— My best friend was a futanari. She also wore pants instead of shorts in class. Besides, you can see how she moves her left leg faster than her right. — Magali still spoke with a serious expression, but she narrowed her eyes slightly as she observed carefully. — And I guarantee you that none of them would get tired like that. She must be trying not to leave her friends behind and keep a constant pace with them, but one thing I'm sure about futanari is... they have divine bodies.
Misty was surprised, soon observing in fact. The three worst students in physical exercises had expressions of near death, while Luna, next to them, was calm. It was admirable, but still, an unforgivable fault. And about what Magali said...
— Divine bodies, huh? — She commented in a low tone.
— Well, I'm going. Thank you for taking the absences. — She then left.
On the way to the gym exit door, the four girls passed Magali in the opposite direction, but only Luna noticed. Her gaze went straight to the large body of the dark green-haired girl, who stared at her with her cold, but not expressionless, gaze. The exchange of glances lasted less than 3 seconds, but it said a lot to both of them. Luna had never noticed her, but now she was thinking about it...
— Hey, Luna. — Kate, panting, called.
Luna was already well ahead of her friends, having advanced with her true impetus much faster than she intended.
— Sorry. — She whispered to her friends, soon returning to a much slower pace.
Misty noticed this attentively, going to write something down in her notebook with a curious smile.
...
The race was over, and the girls were waiting for the others to take a shower so it would be Luna's turn. This was another part of her mothers' special requests. She could take a shower alone, or with whoever she could invite, so as not to cause any kind of “eration accident”, scaring the other students.
— I was terrible! It was my worst time so far! — Kate, still panting, commented.
Mika and Ellie couldn’t even really answer. They just confirmed the same with their hands.
— Even so, this time you finished, Mika. I’m proud of you. — Luna praised.
Misty approached them, her usual smile hiding her real intentions. She pointed the pen at Luna and asked her to stand up.
— Please, come with me. I need to talk to you alone. — She said, her smile widening.
Luna swallowed hard, looked at her friends and followed the older woman. The other three were very nervous, and of course, they already imagined that it was because Luna pretended to be slow during class.
...
In Professor Misty's classroom, Luna heard exactly what she expected, and she was embarrassed.
— You're the fastest student in your class, and I would even understand hiding all your skills, but... being in the last place with your friends is pretty stupid. — Misty commented.
— I just didn't want them to fall so far behind, that's all. — She tried to justify herself. — But I apologize. It won't happen again. — Even saying that, it was clear on her face that it was the opposite of what she wanted.
— Luna, I'm a practical woman. I can say that you're much better than the ducks in your class, but the reason is quite obvious. — She stood up and walked out from behind her desk, walking to the front of it, standing slightly to the side.
It was possible to see the shape of her body, her huge round ass tight in the black leggings she was wearing, as well as the delicious curves herself. What she did would be obvious to anyone, but Luna always did the same.
— Looking away to avoid any trouble, huh? — Misty thought when she saw what Luna had done. — She's not that pleasure-crazed person she seemed in the locker room, but I think with the right motivation...
Misty took off her coat, leaving only the sports bra that left her large and slightly round breasts hanging inside it. Breathing audibly, she went to get a piece of paper from the table, turning her back to Luna.
— Although I don't think it's that serious, you lied to me, so I'll want to redo your evaluation later. It could be on Saturday morning.
Luna turned her eyes to that huge round cake in front of her, even though she was struggling to avoid it, recent events had made her less controlled. She heard everything that was said, but her focus was still on that. The teacher was writing on the paper on the table, and Luna's mind was only on feeling it.
— Concentrate, Luna. She's your teacher! You're going to be in trouble if... if... — Her thoughts quickly turned treacherous, and there was no way to resist... — Fuck that!
Luana's waist moved before her, but the answer was a strong, clean slap right on the right cheek of the teacher with the huge ass. The sound echoed loudly, but it would have been even louder if there was no fabric there.
— OH! MY GOD!!! — Misty said, her eyes wide. — I expected a reaction, but that was better than I thought! — In her mind, she concluded.
Luna was paralyzed, totally scared by what she had just done. Her hand twitched, and her body seemed to freeze in fear, but what she got in response... was something very pleasant.
— I can still feel the burn. You're really strong. — Misty told her, but soon began to turn around. — You certainly liked my huge fat ass, didn't you? — She winked teasingly.
— I... I... yes. I loved spanking her. — Luna bit her lip as she spoke, her horniness written all over her face.
— You'll like what I want to do to you more. — Without holding back, Misty went straight to the point, as she said, being a practical woman. — I saw you with your friends in the locker room, and I'm not going to lie, I wanted you a lot. — She noticed Luna's eyes shifting. — Don't be embarrassed. That strong and dominant girl... I want her, tonight, making me cum really hard. — She then handed over the paper she had written, and it had her address on it.
Luna took a deep breath, nodded and left the room. Misty, in turn, put her hands on the table and leaned back, her legs shaking and her pussy clenching.
...
Mika, Ellie and Kate were shocked, completely speechless
— If you tell anyone, I'll never speak to you again! — Luna warned, but she wasn't serious. She just didn't know how to react.
— I can't believe it, imagine talk it for someone! — Ellie replied.
— The teacher... is she that naughty? — Mika asked.
Kate cleared her throat, put her hand on Luna's shoulder and looked at her with a friendly smile. Taking a deep breath, she said:
— Have fun destroying that fat ass. Do it for all of us who suffer through the boring exercises she made us go through!
Luna was stunned, but overall... that's what she really wanted. To fuck the teacher's huge ass...
...
First, she sent a message to her mothers, warning them that she would stay late in the RPG group. A blatant lie! Then, when classes ended, she ordered a car on an app and headed to the address, since it would be too dangerous to go with the teacher. She tried not to get nervous, and still control her more... animalistic side, but all she could do was not to explode her baggy pants with her giant cock.
At home, lying in bed just a few hours after arriving, Misty had taken a shower, moisturized her body with cologne and creams, and made herself shiny and smelling good for her young lover who was arriving. A huge dark pink dildo with metal balls was used to “exercise” her hungry and eager ass, which even though huge by normal standards at 50cm in size, was much smaller than Luna's immense pole.
— I'm so anxious for that huge horse cock! I'm a terrible teacher, but I can't resist... — She said as she clenched around the toy.
The bell rang, and the teacher walked naked to the door with an excited smile. When she opened it, Luna's eyes widened when she saw that perfect woman in front of her, practically begging to be fucked.
— Fuck... — Luna said, then automatically walked towards her "meal" and closed the door.
Her pants were pulled down and left to fall, revealing the latent mass of flesh that burst the elastics as it grew with each second! The monstrous cock thickened with each fierce pulse free in the air, soon leaking precum declaring that it was about to explode.
— What a magnificent cock! — Misty said moaning, placing her hands on her cheeks.
— You whores really love this, don't you? — Luna, already completely different from her normal self, spoke with one hand on her waist and the other free to grab her teacher's soft flesh. — Let the fun begin, dear teacher. — Luna slid her huge meat pole between her beloved teacher's thick, soft thighs, grabbing her huge ass like reins and leading her to the bedroom.
— She's so THICK! She's going to destroy my ass with this! — Misty screamed in her mind, while with each movement her thighs slid the monster beneath her.
Feeling her arousal increase, her huge pole dripping onto the floor even more, Luna couldn't hold back and spurted out cum in a few more contained jets than before.
— Well, this will be a good lubricant for you. — Luna commented, making her teacher moan in desire.
When she got to the bedroom, using a surprising strength for her teacher, Luna pushed her so that she was on all fours on the bed with her huge fat ass facing her, and her pole came out between her thick thighs and pointed at that tight ass.
— Give me that huge pole, Luna! Fuck me without mercy and make me scream! — Misty begged, soon feeling her wish being fulfilled.
— Your ass is so tight! — Luna growled and went to grab that huge ass again.
— OH FUCK!!! SO DAMN BIG!!!
Luna thrust hard into that tight ass, opening her way to go even deeper! Misty moaned loudly and felt the new “measurement” of her from that moment on, and in fact nothing she had in her life came close to stretching it like that! Her pussy vibrated with excitement, and soon her orgasm came and made her tighten her ass even more, generating jets of cum from her super-endowed student!
— OH MY GAWD!!! SO MUCH CUM!!! — Misty screamed, feeling it inside her.
— Wow... that was a good warm-up. — Luna commented, with her cock throbbing and releasing cum that ran down the sides over that huge ass.
— “Warm-up”, huh? Well, you did cum a lot more with the girls in the locker room before. That means... — Before she could finish, she felt Luna climb onto the bed and get on top of her. — Oh my... she got even thicker!!??
The fun for the fierce Luna really began, as did the rough sex to destroy her teacher's fat ass! Hammering down and fucking that tight asshole, Luna made her scream with intense power! The magnificent pleasure of that tight hole was wonderful, and his cock was loving the feeling of spurting cum in that perfect ass!
— Are you enjoying your first time with a giant futa cock, bitch? — Luna asked teasingly.
— OH FUCK!!! I GONNA FUCKING DIE!!! ITS SO MUCH COCK!!! COCK!!! COCK!!! — She screamed from that powerful pressure!
In one powerful slap, Luna grabbed that fat ass and pressed his cock as deep as he could and then came filling it with a much bigger load than the last! The cum ran down her teacher's throat, making her feel what intense sex with a huge futa was like!
— I can't believe I invited this monster to my house! She's going to totally knock me out! — Misty thought as she felt the cum dripping from her!
Wild sex ensued, with the skinny girl holding the much heavier woman in the air, fucking her giant ass in a full nelson motion, fucking and cumming more and more intensely to have all her pleasure. The teacher just vibrated in her orgasm, but struggled to stay conscious!
— CUMMING!!! — Luna screamed.
— OH MY FU- GLURP!! — The cum ran down her throat again and fell onto the bed like a waterfall!
The teacher now lying on top of Luna was fucked from below, while the girl had her face between her huge soft tits! The movement was intense and her fervor was unquenchable! The latent lust taking over her mind turned the little blonde into a beast as insatiable as a sex demon! Strong slaps marked the huge white ass as a sign of total domination, the requirements of the powerful futanari and the intense night that followed!
In the end, Luna lowered her pelvis with such power that Misty's belly swelled in the shape of the tip of the huge cock, she could only fight to stay conscious at least until Luna's next insanely big orgasm, and that's what happened!
— Here... GO!!! MORE CUM FOR MY WHORE TEACHER!!! — Luna screamed, spurting all the cum she could to give her teacher an incomparable sensation!
— OH SHIT!!! FUUUUUUUCK!! — Her eyes widened when she felt that torrent even bigger than the others, and then, in her own orgasm, she fell completely knocked out.
Luna panted like a fierce monster for long seconds, and then she got out of her teacher. It took her a while longer to see that the fat-assed woman lying down was passed out, and she gritted her teeth in frustration at not being able to cum like she wanted anymore! Even so, a part of her normal conscience still told her to worry.
— Teacher Misty is so hot and tight. — Luna thought, looking at the body she had just used as a milker. — Even so... I want more. Just a little more. But she...
Luna went to where she had left her clothes, grabbing her cell phone to call someone who could help her with her orgasms that had not yet been realized...
— Hi, Agatha... — Part of her was still that fierce futanari dominatrix who had fucked the hot teacher, and so it wasn't so hard to continue to say what she wanted. — I need to cum. I'll send you an address. Come here and get that fat ass ready for my huge cock. — She looked at her cock throbbing stupidly.
Agatha, on her bed, had her hand soaked after her pussy exploded in previous orgasmic squirts, but soon drooled even more for being ordered in such a direct way.
— I'm coming, giant dick nerd! — She replied hornily.
...

Agatha didn't take long to arrive, and she only had a few moments to be shocked by the sight of the physical education teacher being fucked in bed by Luna, before she herself ripped off her clothes, stuck her huge cock in her ass and came inside her with her clothes still in her hands!
— Thanks for coming so fast! You're the best fuck buddy a girl could have, Agatha!
— N-no... Problem... FUCK!!!! — Agatha replied, soon feeling the cum filling her body again!
— With pleasure, my slut! Damn, your ass is better than the teacher's!!! — Luna said, throwing her clothes aside and starting to fuck for real!
Deep inside, Agatha began to think:
— OH FUCK!!! Her huge cock is addictive!!!
...