[Futanari, Size Difference, NTR, Hyper Cock]

"That's it, that's the spirit. Just keep your breathing steady, and it'll feel even better."

Despite the nice words, the girl currently hilted on her cock had a difficult time properly responding. And who wouldn't when faced with a cock that was about the same size as half their total body mass? It was a wonder she hadn't broken... And yet, in some way she already had.

The girl on her cock... What was her name again? Ah well, she'd just ask her once she was done filling her. Either way, she had called and asked for some personal training about a week ago. She wanted to be nice and fit for her equally youthful boyfriend. But when she came over to greet her, the gal had other ideas... Or, rather, her mind just kinda blanked once she was met by that wonderful smell.

Tanya had seen it so many times before. And she wasn't exactly against it, if she had to be honest. Girls like her and all the other trainees that she had taken care of, they just couldn't handle a slab of meat like hers. They always started thirsting. Hell, it was part of why she was so strong and fit in the first place. Fucking sluts day in and day out and making sure that they kept to their 'routine'? Of course that let her burn a lot of calories and at the same time train all the important muscles.

This was their... Twentieth fuck since they first met? Something like that. Compared to the very first time she broke in her mouth, she was lasting a lot longer. Well, it was minutes compared to seconds, but who was really keeping track?

"M-More... Moooore..." The slut currently wrapped around her cock gasped, as her pussy clenched down on that mighty member. It was hardly tight enough to wring anything out of the cock that was currently stabbing into her pussy. But it was an attempt. And an attempt was much better than no attempt at all.

"More? If you say so, darlin'!" The cock-wielding personal trainer laughed as she thrust deep into the hole. Slamming through the cervix that she had long since forced open. Letting her cock thoroughly stretch out that thirsty womb within. It had really taken a beating from her cock over these last few days, but it was a proper slut's womb at this point. It could handle the kind of cum she was able to output, without letting much of it leak out...

It really proved that her current slut was a better fuck than most. Most sluts like her would break far before their wombs were used to all the cum that she'd have to give them. And sure, she tried her best to fuck 'em into shape, but eventually they were so loose that they didn't really do the trick. This girl? She was the real deal. A real slut that wouldn't break. A real slut that she could just... Mmmph, she could just pin her down to the ground and breed her all night-

"H-Honey, what- What's going on here?! Who are you and what are you doing to my girlfriend!?"

Tanya raised an eyebrow as she felt the girl's cunt tightening down on her even harder, turning her head over her shoulder as she gazed towards the entrance to the bedroom. And why, there was a cute young man standing right there. Real thin lookin' chum. This was supposed to be her boyfriend? He was almost cute, with how much manhood he lacked just at a single glance.

She could definitely tell that the girl wrapped around her cock agreed. She wouldn't be climaxing this hard upon having her boyfriend see her get bred by a proper bull, if she didn't think that she was so much better than him. Of course she thought that, there was nothing that really compared to a fuck from Tanya.

"Just helpin' your girl stretch out a bit, boy. You can stand there and watch if you'd like, I'll be done with her soon!" Tanya grinned, as she turned her attention back on the girl. "Wouldn't wanna keep him hanging, darlin'. Now let's fill you up!" Personal trainer, fuckstud, bull, whatever Tanya considered herself, she definitely had her principles. And it'd be just rude to fuck somebody for much longer after getting caught.

The young man couldn't believe his eyes. He had just been out to fix up a couple of circuits at work so he could go home and relax the entire weekend. And here his girlfriend was, being speared on a cock that was... No, it was even bigger than his arm. And just the sight of it was enough to make his heart rate skyrocket, and his breathing intensify to the point where he could barely even catch his breath...

Had she been cheating behind his back? More importantly, how had they met? Was he not good enough for her? All sorts of thoughts ran through his head, all while he felt his ass trembling the more he watched that tall and toned futanari slam in and out of her like a proper bull. It was like something was switching on inside of him as he watched her...

In and out. In and out. The bull just kept on thrusting, and his girlfriend just kept on screaming in delight. It was a sight that was just so absurd that you had to see it to believe it. And even then, he wasn't sure he did. Especially as it made his hand wrap around his crotch instinctively...

"Almost... Got it..!" Tanya cried out as she reared her hips as far back as she possibly could, before letting out a real primal yell. A pure cry of pleasure that released all of her pent up pleasure. All while the sound of her audibly gurgling balls echoed out, before those nuts compressed...

The boyfriend was treated to a delightful treat. The sound of his girlfriend being stuffed full of cum. The sound of sticky seed splattering all around inside her. The sight of her belly inflating as more and more of that white liquid filled her over and over. Until there was not a single inch left inside her for it to cover. She was completely and utterly bred, and given the fact that she wasn't leaking even as the bigger woman pulled out, this was hardly the first time she had been filled like this...

The sight of his girlfriend laying there... The sight of her being filled like that... It was so humiliating that he couldn't help himself. All he could do was whine in a weak manner, as the front of his pants grew stained with his cum. He really didn't want to do something so humiliating. Something that made him feel like he was the worst of the worst. And yet here he was. Cumming because his girlfriend had been bred.

But it got worse. All thanks to the cock currently pointing at his face. The cock that was slathered in his girlfriend's juices. The cock that still had some of its own cum sticking to it. Just gazing at it made him feel so small. It was... God, it was even bigger than his torso now that he got a good look at it. And at the same time, it made his pants tent even more than they had before.

"Like what you see?" Tanya smiled, as she gave that cock of hers a nice stroke. "What's your name, cutie? I'll have to get your girlfriend's name later, but right now, you're the one that needs a lil' time with this." She was so brazen about her intentions. So cocksure. It was what made her completely irresistible.

The young man gasped and inhaled another powerful whiff of her scent, before trembling and drooling a bit in response. He couldn't fight back against her. Not even for a second. "I-I like it... A-And... My name's... K-Ken." The musk was one thing, but the sweat pouring down her was just as arousing. He could feel her innate odor getting to him. Making him feel so much lesser. So much so that he couldn't really process what he had told her.

"Ken's a cute name for a cute face like yours!" Tanya laughed, as she put her hand behind Ken's head and forced him up against the tip of her cock. Letting him kiss it, even if she was forcing him to do it. "Name's Tanya. Your girlfriend and I've been very busy making sure she's in tip-top shape. So how about it? Y'mind bending over so we can get started on you too?"

He really couldn't process what he was hearing. It was all just one goopy and extra horny haze inside his head. Anything that went in one ear just went out the other moments later. All while the taste of her cock remained on his lips. The taste of that mighty thing, begging to be throated. But she didn't want him to do that. She wanted him to... to...

"Y-Yeah... S-Sure thing..." Ken muttered, barely even close to coherent as he dropped his clothes off. Exposing his painfully throbbing cock, and how pitiful it was in comparison to the bitch breaker and stretcher in front of him. His cock was about a finger long, and compared to her monster... It was like a baby's... Which just made him feel even more aroused, the sheer girth leaving his body trembling in delight and with a certain kind of need...!

Tanya smirked as the young man, a real tight-assed twink now that she gave him a good look, got down on all fours. Pushing his ass into the air like a good boy. He was so painfully tight that she'd definitely have to put a bit of strength into forcing him open. But she was used to it. Girls were just as tight to start, before they had a taste of her rod.

Which was why she didn't have any issue forcing herself down on him, wrapping her arms around him to make sure that she braced herself correctly, before slamming her cock into him. In one fell swoop, without even giving him the chance to prepare himself for how good it'd feel, she broke open his ass and stretched it as wide as it could go.

To say that Ken climaxed would be an understatement. In one fell swoop, he was struck by several dozen orgasms. Each hitting harder than the last, each occurring within such a tiny window in time. He screamed in delight as her wet and sticky cock spread out his ass, starting him down a proper road of sluttery just like his girlfriend.

To Tanya, however, the sound of Ken cumming uncontrollably was just another satisfied customer. She had been through many like him before. Many like her too. But if he was anything like his girlfriend, then he was going to shape up to be one of the very best sex friends she had. Not only that, but he'd probably be able to pack on both a nice layer of muscle that would make him an even better fuck... And a fat ass that would cushion her cock lots whenever she screwed him silly.

"That's a good start, darlin'! Here, let's celebrate!" Tanya shouted, as she used her grip on him to tilt him into the air slightly. All so she could slam deeper into him, and let out a cry of her own. Of course he was tight enough to make her cum, just not cum as violently as when she was hilted into his girlfriend.

Not that he could tell the difference. The only thing Ken could feel was the ecstasy that came with being bred and being cumflated. A trail of drool running down his chin as his stomach bloated outward, and all the cum that couldn't fit inside him started to either pout out from his mouth or leak out and around the cock inside him.

And if this was how it would feel to work out... Then he really had to be there for Tanya's... C-Coach's visits more often...