The two big booty babes stop in front of a row of stationary bikes. "A good way to start off a big work out is with cardio. Bike riding and walking is great for cardio but I prefer the bikes over the treadmill. The main advantage is that you can sit down while exercising." Vanessa says as she demonstrates how to use the bikes. The super sweaty futa swings her leg over the bike and plants her juicy behind on the seat. Jason feels his world shakes as he is trapped inside the fabric of Vanessa's track pants' crotch. As his big sister sits down, the gallons of sweat stored in her air tight pants shifts around until they flood her crotch. Jason feels himself being pulled away from his giant sister's wrinkly balls by the wave of sweat as it overflows from the top of the pants and pours out to the seat and to the puddle on the ground below it. The salty water surrounding Jason causes him to break away from the fabric and he regains himself on the outside of his gym rat of a sister. "And now you just pedal." She demonstrates as she pedals at super fast speeds. Her inner thighs rub up against each other, crushing Jason and causing her to perspire more.
"That looks like fun. Let me try." The Swedish school girl says enthusiastically. Vanessa gets up off of the seat. Jason tries to hold on but without any hands, he fails and drips onto the sweat soaked seat. He breathes in the fresh air while he could as the seat was being adjusted. Jason tries to reform himself as fast as he possibly can. He'd be able to climb down better to the safe floor if he had his arms and legs back. Right before he could reform his legs though, Jason looks up and sees that the light was blocked out by Annabelle's gigantic ass. The two spherical ass cheeks look like literal moons to the tiny, squishy boy as he sees them part to reveal the teen's unwashed, brown asshole which is eating the white thong panties in front of it. The titanic sized ass slowly descends on the slim boy, the bike seat disappears in between Annabelle's carnivorous ass crack as she sits upon it, unknowingly damning Jason to darkness. To make matters worse, the formerly white panties slipped out to the side at the last possible second, forcing Jason and the seat to go right up her hungry doughnut hole. "So, I just go like this Coach?" The Swedish girl starts pedaling as fast as her thick legs can. "How am I doing?"
"You're doing good." Vanessa steps back to get behind the bike so she can get a front row seat to that huge ass jiggling like Jell-o. "Damn good." She whispers to herself as she bites her lip and stares at the impossibly round orbs shaking on the stationary bike. The horny futa lightly strokes her fat cock through her tight track pants.
PPPPPPPPPPPPPPFFFFFFFFFFFFFFFFTTTTTTTTTTTTTTTTTT
A loose fart escapes Annabelle's ass as she stops and grabs her stomach. The gas blast smelled like a sewage leak to the poor slim boy who is stuck up her ass. "I don't feel too well. I've been constipated for a while. Now any exercises that are good for those Vanessa?"
"I know a good way to fix that. My sister gets constipated like once a week. Follow me." The ghetto bootied Swedish girl gets off of the brown, muddy bike seat and follows Vanessa to the gym's bathroom. Jason is pulled off of the seat along with her as he is sticking halfway out of his classmate's asshole. "Now I'm gonna need you to bend over the toilet while I loosen up your ass."
"Is it going to hurt?"
"You'll be fine." The blond cheerleader obeys to the older woman's demand and bends over the porcelain seat. Jason looks on as he sees the thin, brown, thong string in front of him get pulled down by his giantess of a sister. Vanessa pulls down the underwear and savors the smell of them. Jason screams for help as he thinks he is saved until Vanessa's face moves away from him as she stands up. He then sees the huge cock bulge in her pants before she pulls them down. Her monstrous cock springs up from the ocean of sweat like the Loch Ness Monster. Even though the futa's cock was already drenched in it's body fluids, the gym instructor snorts up some loogies and spits it in both hands before rubbing her massively vain filled meat. She grab's the volley ball sized cheeks and spreads them. Jason screams out help as the cum drizzling head gets closer but no one hears him. Vanessa rams her head into Annabelle's hole and pounds the shit out of her. Jason was shoved fully into the stinky hole by his sister's giant cock, his rubbery body stretched out along the purple head like a small condom while both girls moan in pleasure on the outside. Looking all around him, Jason can see up ahead a brown wall of shit that is serving as a dam. Each thrust his sister makes brings him closer and closer to the dam until he is rammed into it. "I think I found your problem." Vanessa pulls back until only the tip is still inside Annabelle's anus, then with one massive push, she shoves her entire cock meat into the giant ass. Her cock crashes through the damn as she cums all over Jason, the force was so much that it blew a hole through his condom like body as he holds on tight to his sister's foreskin. The poo dam now broken, a river of diarrhea blasts down the Swedish cheerleader's colon and blasts out as the spent futa pulls out her softening dick.
Like projectile vomit, Annabelle's asshole fires a cannon of brown, chunky mush out at Vanessa's crotch. Jason flies with the liquid shit blast and smacks onto the gym instructor's wrinkly balls as her entire crotch is caked with anal juice. Annabelle turns around and sits down on the toilet. Quickly filling it with cum and shit as she moans. "I think that was my favorite workout."
"We can do that every time you come back." Jason looks back at the classmate who fired him from her ass cannon as she blasts more waste into the overflowing toilet. Vanessa then bends down to pull her pants up.
Stays in the pants
Jason has no time to react as the pants surround him again.
Jumps to the floor
Jason manages to peel himself off of his sis's balls and lands on the floor as the two leaves.
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