You see the boy starting to come to his senses a bit, and decide that you can’t have that. Grinning, you lumber towards him, foul, pungent farts streaming from your shittained bigfoot asshole. The boy seems equal parts terrified and entraced and can’t seem to help himself as he slowly creeps closer.
You grin, letting loose a loud, particularly stinky fart, that the preppy boy can’t help but sniff slightly, closing his eyes and inhaling the fumes. You suddenly grip the boy’s shoulders and pull him in for a disgusting sasquatch kiss, shit covered tongue forcing it’s way into his mouth.
He accepts is eagerly, wrapping his arms around your furry neck, trying to inhale as much of your shit-smelling breath as he can. A sudden trumpeting blast of gas from his ass alerts you both to the fact that he’s begun shitting his pants. Thick, lumpy crap fills the backseat of his shorts, expanding them outward, as log upon logs of shit tumble down his legs, leaving dark brown stains.
As he defecates uncontrollably, his brow begins to grow, and the same fur that you have begins to develop across his body. The once ‘handsome’ teen now looks like a cro-magnon, and is only getting uglier. As his body changes, he starts letting out louder farts and bigger turds from his expanding anus. There’s a medium sized pile of shit around his legs. His shorts struggle to contain the mess that just keep coming out, with the backside of them now being stretched out to around his knees, weighed down with a mountain of delicious, foul-smelling brown crap.
As you force your tongue into his mouth, there’s a clatter from behind you and loud moaning. You stop and turn to see your dad getting his ass plowed by the other boy’s dad, now a disgusting, fat, grey furred sasquatch. And from his ass is a torrent of massive, steaming hot dung that the lumberjack is eagerly shoveling into his fat gorilla face.
“D-Dahhh…” The boy weakly cries as he sees his father, or what was his father, banging your dad. “Wh-Wha’ di’ you…” The boy suddenly seems aware of the surroundings. Finally seeming to realize that he’s turning into a shit-loving Bigfoot. His mess has already finally ripped through the back of his almost completely brown covered shorts. His polo shirt has ripped off his muscular frame, and the tattered remains are covered in flecks of bigfoot shit. He’s horrified.
“Wha’ di’… Whasss happun’ to me?! C-Change me…” You growl angrily. Frustrated at your father for breaking him out of it, and mad at yourself for not changing him faster. The boy looks at his devolving hands, then at you, pleadingly. You grunt and grab the back of the boy’s head. He struggles, obviously, but he’s not as strong as you, as you force him behind and shove his face into your hair, shitstained ass.
“Eat.” You growl, as you relax your bowels, shitting all over the boy’s face. You can hear his muffled screams as he struggles, and attempts to fight, but as the stench of crap hits his nostrils, he starts to calm down, before eagerly slurping up the logs emerging from your tight hole. He wraps his fur covered arms around your waist, a chorus of farts signaling that he’s shitting out the same shit you’re shoveling into him, making a big mess on the floor that he sits his bare, furry ass in and eagerly rubs against it.
His arms are completely covered in fur now. You take your hand off tentatively, but the boy is still eating your shit. You pull him back, seeing his handsome, transformed face, covered in sticky brown muck. He smiles at you dumbly, teeth coated in dung. Satisfied, you let go of him, and allow the boy to resume eating your feces, which he does so with gusto, as he crawls underneath you and begins licking your hole. A few more spluttering, wet farts, and the shit resumes. You grab your dick and start to jack off as the boy licks your hole like it’s candy.