Carly and her training partner

The next morning, Anna woke up extra early, her excitement barely contained. She threw on some workout clothes her mom had just bought for her now that Anna was getting excited about fitness. A sports bra, tank top, and yoga pants that showed off her curves, then tied her hair back in a ponytail.

After a quick breakfast, she snuck out of the house, not wanting to alert Billy to her plans. The last thing she needed was him trying to talk her out of it or show up uninvited.

Following the directions Carly had sent, Anna arrived at a modest home just a bit outside the city limits. Behind it stood a large metal shed. Carly had told her to just come in when she arrived, so Anna opened the door and entered.

Inside, the space had been converted into a surprisingly well-equipped gym. A heavy bag hung from the ceiling beside a training dummy. There were free weights, a treadmill, and a large area of mats covered the floor. On the mats, Anna could see Carly alongside another figure, one she recognized all too well.

Anna had expected to see another girl there to train. Instead, Carly was currently facing off with a boy. But not just any boy. Billy's best friend, Matthew. They had yet to notice her, so Anna watched in surprise as the girl she was starting to admire and the boy she had liked for years started to grapple on the mat.

Anna froze, her eyes widening as she took in the unexpected scene before her. Matthew, wrestling with Carly? Her heart raced as she processed this new information. When had they started training together? Were they dating? Did Billy know about this?

As she watched them struggle, Anna felt a confusing mix of emotions swirling inside her. On one hand, seeing Matthew engaged in something so physical and intense was incredibly arousing. His muscular body and bare chest glistening with sweat as he struggled against Carly's moves...

But on the other hand, the sight of him with another girl's hands all over him stirred up feelings of jealousy and possessiveness that Anna didn't quite know how to process. Especially when it looked like he was losing. Anna could only stare in disbelief as Carly got Matt's head under her arm, forcing him lower until she clamped her huge legs around his head before bringing them to the ground.

"Ow! OK, you got me. Let me up now..." Matthew groaned, his head poking out from between two of the meatiest looking thighs Anna had ever seen. The two of them were laying on their sides, Matt's face staring into her round, sculpted butt that was overflowing from a pair of tiny blue gym shorts. Neither had noticed Anna walking up as they struggled on the floor.

"Seriously, Carly, you got me! Let go!" Matthew said, red faced, sounding more scared than Anna had ever heard him.

Carly just let out a giggle at his distress. She tightened her grip around his head, squeezing her powerful thighs together to hold him firmly in place. She rested her head on her hand, looking almost casual as she dominated the skilled young fighter. As she flexed her legs, Carly's plump, sculpted booty looked like it might swallow poor Matthew's head whole if he didn't get free soon.

"What's wrong, Mattie~?" Carly teased, her voice sultry and amused, "You know you love being trapped by my fat ass and juicy thighs. Don't pretend you aren't enjoying every second of this." She wiggled her hips, rubbing her thick cheeks against his face.

"I... I do not!" Matthew insisted, his voice muffled slightly by the smooth flesh pressed against his mouth. His hands pawwed weakly at Carly's thigh. When she heard that, the girl cranked up her scissorhold, making Matthew thrash wildly. "OK! OK, I DO! Please, Carly, don't knock me out again!"

Carly laughed again, a darker tone this time as she smirked down at her captive. "Hmm... I wonder~"

SLAP!SLAP!SLAP!SLAP!

Anna watched in shock as Matthew tapped out frantically against Carly's bare thigh, making her plump booty and gams wobble in a hypnotic wave of feminine flesh. He was begging for mercy, but Carly just laughed, clearly enjoying the power dynamic. She squeezed her thighs tighter, holding Matthew firmly in place. His struggles only seemed to excite her more.

"That's right, Mattie. Admit it. You love being overpowered by a strong woman," Carly purred, smacking her plump cheeks against his face. "You don't have to say it, just be a good boy and kiss my ass."

Matthew hesitated for a moment before pressing a quick peck onto one of Carly's firm cheeks, then the other for good measure. She chuckled and released her grip slightly, allowing him to breathe easier.

"Good boy," she cooed, running her fingers through his hair. "But I think we need to make sure you remember your lesson. Let's give you something to really remember me by..."

With that, Carly curled her legs, using her iron calves to press Matthew's head forward, sandwiching his nose and mouth between her thick, meaty cheeks. The young man thrashed wildly as his world was eclipsed by booty.

"Mmmm, that's better," she moaned. Carly rolled onto her stomach to gain more leverage and really wedge Matthew's nose in deeper. She kept his head pinned with her calf, wiggling her hips back and forth and using her powerful glutes to smother Matthew's face. "Now, let's see how long you can last breathing through my big butt..."

Anna stood frozen, unable to tear her eyes away from what she was witnessing. Billy's rival, her personal prince charming, was being completely dominated by this athletic girl, his face buried in her plump, jiggly ass. The sounds of muffled grunts and moans filled the air as Carly continued to grind herself against him, thoroughly enjoying her position of power.

She couldn't believe it! Matt was one of the best fighters she knew, yet Carly was making him look absolutely helpless and pathetic...

Carly's powerful thighs clamped down harder around Matthew's head, her muscular legs quivering with exertion as she pinned him to her curvy frame. Sweat glistened along her toned shoulders and waist, her breathing heavy with dominance. "That's it, Mattie... just take it..." she cooed, rolling her wide hips side to side, grinding her plush ass against his struggling face.

Matthew's muffled protests grew weaker as oxygen became scarce, his hands slapping feebly against her smooth skin. The sound of wet flesh squelching filled the room as Carly worked her voluptuous, sweat-slick rear against him, clearly savoring every second of having such a skilled fighter completely at her mercy.

Anna knew she should stop the lewd display, but couldn't bring herself to. Seeing her brother's rival so utterly dominated was both shocking and strangely arousing. She felt a warmth spread through her core as she watched Carly's plump ass jiggle and bounce, crushing Matthew's head between her leggy vice.

The girl's confident smirk and the way she reveled in her power over Matthew sent a shiver down Anna's spine. She found herself wondering what it would feel like to be in Carly's position. To have someone so strong and capable completely at her mercy.

No. Anna knew. She'd done it to Billy repeatedly now. And it felt amazing~

As if sensing Anna's presence, Carly looked up, finally locking eyes with her. A wicked smile spread across her face as she realized she had an audience. Without missing a beat, she reached back with one hand, grabbing a handful of Matthew's hair and pulling his face deeper into her crack.

Carly's gaze never left Anna's as she began to clench her thick cheeks around Matthew's face aggressively, her mighty glutes clapping loudly against his skin. The lewd, wet sounds of her dominance filled the air, punctuated by Matthew's muffled cries and gasps for breath.

"Oh yeah, watch this bitch get owned," Carly taunted, her voice dripping with confidence. "This is what happens when a real woman takes control. He's nothing but a horny little stress ball, isn't that right, Mattie?~"

Matthew's response was a garbled whimper, his face completely obscured by Carly's plush, jiggling ass. The girl laughed cruelly, giving her butt a sharp smack to emphasize her point.

Anna felt her face flush with a mix of embarrassment and arousal as she witnessed the degrading scene unfold before her. Carly's boldness and the sheer intensity of her dominance over Matthew were captivating, drawing Anna in despite her initial shock.

As if reading Anna's thoughts, Carly turned her head slightly, maintaining eye contact while continuing to grind her ass against Matt's face. With a sly grin, she slowly lifted one hand and gave Anna a come-hither gesture, inviting her to join in the depraved fun.

Anna hesitated, torn between curiosity and fear. But the heat building between her legs made the decision for her. She stepped closer, drawn in by the raw, unfiltered display of dominance playing out before her eyes.

Carly's grin widened as Anna approached, her muscular frame glowing with confidence and control. She adjusted her position, dragging Matthew's weakened body along for the ride so that he was now on his back with Carly sat atop his face like a thrown. His only saving grace had been the quick gulp of air her shift had allowed. Carly smirked at her new seat, reaching out to grab Anna's wrist firmly, but gently. "Come here, shortstack," she commanded softly, her voice husky with authority. "Don't tell me you're gonna stand there all day watching instead of joining in the fun...?"

Anna felt a thrill run through her as Carly pulled her closer, the girl's strong grip sending shivers down her spine. She stumbled forward, her heart racing with nervous excitement.

Carly's other hand snaked out, wrapping around Anna's waist and gently pulling her close. The sudden proximity allowed Anna to feel the heat radiating off Carly's toned body as she pressed Anna's curves against her own in a dominant, possessive manner. Matthew's muffled groans and the sound of his **** attempts to breathe only added to the overwhelming atmosphere.

"That's it, sweetie," Carly purred, her lips brushing against Anna's ear. "Now wrap your legs around his waist. We're gonna squeeze him together~"

Anna found herself straddling Matthew's chest, her yoga pants stretching taut against her own thick thighs as she settled into place. Carly guided her movements, her strong hands positioning Anna until she was sitting squarely atop Matthew's torso. The heat from his body seeped through her clothes, mingling with the heat of her core. The combined pressure of both girls bodies crushed Matthew beneath them, his face still buried in Carly's crack as Anna's soft curves molded against their muscular frames.

"Perfect," Carly murmured, satisfaction evident in her voice. She began rocking her hips, grinding both her and Anna's asses against Matthew's helpless form in unison. "Now help me teach this simp his place~"

As Carly rocked her hips, Anna instinctively followed suit, matching the rhythm of the older girl's movements. The sensation of their combined weight pressing down on Matthew sent a rush of power coursing through her veins. She could feel the outline of his muscles straining beneath her, his chest rising and falling rapidly as he struggled to breathe.

"Fuuuuck~" Anna moaned as she squeezed Matthew between her luscious legs, grinding her soaked pussy against his chiseled abs. She was forcing all the oxygen from his body, while Carly's bountiful booty denied him more. He tapped Anna's thighs, desperately begging for mercy...

SLAP!SLAP!SLAP!SLAP!SLAP!

Damn that was hot...

The air grew thicker with the scent of their joint arousal. Anna's eyes locked onto Carly's, seeing the same hunger and dominance reflected back at her. Together, they moved in perfect sync, using their bodies to assert their dominance over the helpless boy trapped beneath them.

Without warning, Carly leaned in, her lips capturing Anna's in a fierce, passionate kiss. Anna's eyes widened in surprise, but she made no move to stop her, even opening her mouth wider when Carly sought entrance. Their tongues danced as they devoured each other, the taste of each other's mouths fueling their desire. Below them, Matthew's muffled protests grew fainter, his struggles becoming weak twitches as consciousness started to slip away.

Carly broke the kiss with a satisfied growl, her eyes blazing with lust and power. "He's almost done," she panted, her voice rough with desire. "One more push and he'll pass out cold. Are you ready to finish him off, Anna?"

Anna nodded eagerly, her own desire burning hotter than ever. She could feel the wet spot on Matthew's abs growing larger as she ground herself against him, the friction driving her wild. Carly's strong hands gripped her hips, guiding her movements as they worked in tandem to crush the life from Matthew's lungs.

"Together," Carly commanded, her voice a husky whisper. She clenched her ass muscles, squeezing Matthew's head like a vice as Anna squeezed her thighs tighter around his muscular frame, forcing what little was left of his air into Carly's rump. He thrashed desperately one last time, but there was no strength left in him.

Then, shocked by her own forcefulness, Anna dragged Carly's lips to her own once more, kissing her deep and hungry. In that moment, both girls came undone, overwhelmed by the dark ecstasy of the moment. They gushed, overflowing their shorts and pants and coating Matthew in their cream. The boy's body went rigid beneath them, his hands fluttering weakly against their thighs before going limp beneath them, twitching in defeat under the women's victorious booties...

As the girls pull away from each other, panting from the intensity of the wondrous climax, Carly gave a mischievous grin, "Hi, Anna~"