First Night
Tyler has invited his new boyfriend over for a quickie but can he control the African Wild Dog inside of him before things get out of hand?
If you like this story you may also enjoy my other M/M story: Locker Room Vigor https://www.sofurry.com/view/1197666
Big thanks to ryman for the help with African Wild Dog info and graciously providing the thumb by Vallhund!
"Come on...put it in..." Tyler moaned as he spread his spindly legs, his thin body wriggled on the sheets. "Come on," the young man lay prone and naked across the king-sized bed. Light streamed in from the quickly setting sun setting a golden cast over his pasty skin. He pushed his cheeks into the air to entice Aiden, his new boyfriend to get on with it. "Keep it together" he whispered to himself as he ground his teeth, waiting. The interminable waiting was the worst part as he spread himself for his partner.
As he pulled apart his pert ass cheeks Tyler could feel the unwanted heat begin to thrum in his loins. It was too early! The bed shifted and squeaked as Aiden's large body straddled him, broad powerful hands pushed into the supple mattress next to his head. Aiden's thick circumcised cock head began to probe at his cheeks, spreading him. "oh! OHHHH!!! You're...you're so big...." Tyler squeaked. He covered his mouth, releasing his cheeks as they clamped down on Aiden's cock.
The dog was beginning to alert itself. He couldn't do anything to stop it as he felt his tight hole take inches and inches of throbbing rock-hard meat. He gripped a pillow against his gasping face, the heat was wracking his body now, driving him to impale himself on Aiden's maleness with wild abandon. He couldn't hold the dog back anymore. "ohhhhhhhhh..." he cried, he hoped Aiden thought it was from pleasure as the pressure built in his prostate.
"Aiden...you have to...stop..I can't..uurhhhnnnnn..." Tyler clawed at the sheets. His partner paid no attention. Aiden's only response was to sink himself deeper into Tyler's spasming interior. Tyler shuddered, holding back the dog's animalistic squeaks as mottled brown, black and white fur pushed out of his sweating bare-back. The fur raced up his neck, coating his head as his hair fell out in clumps.
"huurghnnn..hnngghhh!!!" he screamed into the pillow as his face cracked and throbbed. The pressure was immense as it extended into a long canine muzzle. His teeth sharpened and grew as they pushed through his stretching gums. Tyler pushed his now partially canine face hard into the fabric, anxious to obscure his changing visage. His body was on fire as the changes wracked him, his body becoming less and less human by the second.
Tyler couldn't keep his body from jerking as his vertebrae thickened in his spine. It only pushed Aiden deeper into him as his long legs stretched over the bed. Riding Aiden and undergoing the change was too much. Sharp new hormones flooded his body as the lances of pleasure erupted from his skewered posterior. He felt like his mind was breaking.
"Strhhhppp...arhnnnn...p..please...ahnnnnnn!!!" he tried to scream, he wanted Aiden to stop but the dog wanted him to thrust harder. The dog won as his scream devolved into a series of moaning squeaks and yips. Aiden obliged and humped him wildly, his weight immense, the bedsprings squeaked so loud that they managed to drown Tyler's moans out. He could swear that Aiden's cock was getting larger, Tyler's body struggled to release the massive tool as it surged in and out of his pucker. It felt like Aiden was almost touching his stomach with the thing!
Tyler's body was almost entirely coated in fur as a thick tail began to push out right above his heavily spread ass cheeks. The heat...the pressure.... it cascaded down his lithe body, lower and lower.
"Fu..fuck....ahhh!!!..ahhh!!!..ahhnnnn," was all Tyler could gasp out of his muzzle as his cock lengthened and thickened between his legs. Every thrust of Aiden's cock seemed to make it push another inch out. Tyler's eyes fogged in a daze of lust as a thick furry sheath formed around the base of his tool. His maleness surged to almost twelve inches of canine sex muscle before it stopped. He could feel every throbbing inch of its new length as it pushed needfully into the bed. His penis's girthy mass had nowhere to go as it heaved against his jiggling stomach, saturating Tyler's body with his own increasingly virile heat. The thickening flesh pulled his new sheath tight as it throbbed. The insatiable need of it was something he wasn't equipped to deny. Soft layers of white and brown fur coated his groin, his curly black human pubic hairs ground into the bed under his changing body.
"Chi! Chi!" he couldn't stop himself from squeaking as his tapered cock began to leak gobs of slick lubricating pre-cum onto his abs before it soaked into the sheets. His olive-sized balls dropped in their sac as they churned and swelled, pulling his swollen taint taught. His tightly-packed testes pushed into his tensed furry thighs as they soon surpassed the size of small apples.
Aiden's humping became faster and faster until he finally shoved into him...hard. Tyler's eyes rolled into the back of his head as he felt a massive bulb of flesh clear his overused rear end with a wet *POP*. "cc..CH..CHIII!!!" he gasped out as he felt his heavy new balls tense, Aiden's cock pressing on his hyper-sensitive prostate. He was cummming! His body erupted as the two lovers arched their backs together, Aiden's thrusting slowing but becoming more powerful as he spilled powerful ropes of scalding hot cum into the dog's ass.
Tyler's muzzle lolled as his ears migrated to the top of his head and became huge and dish-shaped. as he orgasmed, his ass overfilled with his partners seed. "Ahh..ahh..ahhh..I..have something..to tell...ahhhn!!! you" he finally managed to gasp even as the euphoria of orgasm continued to wash over his body. He couldn't stop shuddering as tiny ropes of his own steaming-hot cum bathed his chest.
"Heh...It's ok, it's my first time with a wild dog too," Aiden rumbled above him as he licked Tyler's face with a thick gray wolf muzzle, playfully nipping at his wide ears. "Ready for round two?" he grinned as his still-hard cock stirred Tyler's ass, his knot sinking impossibly deeper into the African wild dog as he executed a powerful thrust. His muscular body wrapping around his mate. Tyler could just moan and nod as his tapered cock jumped under him, still in the throws of orgasm.