An AU story by Arubazu, enjoy!
Max heard the honk of a horn in his house and knew it was time, as he rushes down the stairs he shouts out “be back later!!” into the household followed by a swift “ok” from a stray parent within the household. Dressed in nothing much more than sweatpants and his classy blue t-shirt he usually wore. He leaves the house to see friend Jason chilling in his car, his head turns to watch max walk down the stairs but he doesn’t change his bored grimace he has as if he were waiting to long.
“S-sorry, sorry.. If I kept you waiting” Max shyly tells jason who lets out a light chuckle. “Nah it’s no biggie” Jason says with a smirk before he watches Max walk around the front of his car into the backseat. Max buckles in and pulls out his phone to show him the place they wanted to go, a movie theater to watch a hot new movie they both wanted to watch. It was fairly far though being that well the theater was pretty much in the real city part of the town and walking would be absurd.
So they were off driving around town, Jason was focused on the road while max seemed to be lazily daydreaming out the window. His mind elsewhere rather than here but these thoughts carried something potent within them. Jason began to feel a slight tingle throughout his body, he shrugged it off as a bit of a cold shiver. Turning up the heat in the car to warm his body a bit, the feeling still remained. It wasn’t until he looked down at his body he noticed a change, his body was growing some definition as his biceps began to slowly expand and grow out and round. Going from his well thin frame to having round golf balls for biceps and still slowly changing and expanding. He can feel his thighs changing slowly gaining definition as well hidden under the sweatpants he also wore but he can see the cloth slowly rising from the expanding definition underneath. Speaking of expanding cloth, he can see his pec’s jutting out of his chest slowly. Rounding and defining into the fair muscular slabs they can be as a small cluster of abs shapes themselves into his stomach. The slow growth process all too stimulating to him that he finds himself getting a hard on from it noticing a bulge poking , making a tent in those sweatpants.
As his body grows more and more, going from that thin built to a bit fit then to the point were his muscles became defined upon his body and noticeable. His clothes still fitting upon his body but not as loose as they were before and all the more aroused from this constant event and more devious as a plan comes into mind. He can use these new muscles to have at Max who denied him so long ago. He finds himself deciding to change plans driving in a different direction more towards his own home, making it around there to his little garden house. The stop jerked Max out of his daydream expecting them to be at the movie theater he turns to look at Jason to ask a question as to why they had stopped but is surprised to see him look way buffer than before. He gets out the car, and tells max to do the same who hurriedly follows suite, “Change of plans today Max, we’re gonna have a different kind of fun, come on in.” Jason tells the other teen enticing him to come inside the garden house. Max enters the house finding it a bit roomy with a sofa in one corner, a bed near a window in another, as well as a tv and mini stove. It look almost rustic but still had a relatively homey feel to it.
“So, I noticed you were into muscles big guy?” Jason says walking closer to max, flexing his bicep to show off that muscle to the other teen who stood at the doorway. Max looked down to meet Jason’s eye’s being that Jason was at a bit chest level with him. Max couldn’t help himself going back n forth biting his lips, trying to resist the desire to just touch and feel them unaware that those round oranges of muscular biceps that jason had now were still growing along with the rest of him due to his power. “Come on touch it, dude i know you want to” Jason says this time in a more seductive tone. Max reaches out and grabs that bicep making Jason chuckle to himself, “I knew you couldn’t resist something this hot” he says in a teasing manner, “Shouldn’t have bothered to keep me waiting if you wanted it.” Jason continues flexing his bicep watching it continue to grow with the rest of his body, expanding and getting harder and stronger. Max simply in a trance, gently finds himself exploring each inch of muscle he had on his upper body. Starting from those expanding biceps to the arms to his pec’s. He can feel those massive stone slabs literally pushing back against his grip as they expand. “Come on now i know you wanna really get into it!!” Jason tells him. Max gets a bit more intense with his exploration, gripping as hard as he can almost drooling from the mouth as he finds himself ensnared in the desire to explore. Squeezing Jason’s pec’s , still expanding under his grips down to each individual ab that rounded out on jason’s stomach. Jason’s body having grown so much 8 ab’s were there by now, his body now chiseled like a statue in rock hard muscles and almost starring Max in the eyes rather than just at his chest. His muscles giving him extra height to bring him closer to becoming a muscular adonis. Max is left in awe as this muscular bodybuilder stands before him. “Come on!!! I mean really into it stop keeping me waiting for you to actually try!!” Jason shouts out almost gleefully. Grabbing max’s hand and forcing it down into his crotch feeling up his cock and balls, Max’s hand grabs it feeling up the grown member thick and hard within his hands smiling seeing Jason smiling back at him. “There isn’t that what we both wanted?” Jason teasingly asks. Max was about to respond but finds him being shut down, “Of course it is, no need to answer,” He says forcing Max’s hand to glide around his crotch, making him moan. “Come on really try!! Impress me!!” Jason shouts out loudly, Max gets into it gripping hard even rubbing his face into Jason’s crotch feeling the warm member through the clothing he still wore. “Come on if you really wanted it, i would be ready by now,” he says, letting out a little teasing yawn to imitate boredom. Max stares for a moment before catching his drift, Swiftly moving to take off Jason’s clothes, his shirt was a bit hard to take off having grown tight around his chiseled muscular bodybuilder like chest. But he tossed that eagerly aside before moving to the sweatpants dropping those and tossing those to the other side of the garden house. Max makes his move taking his hand sliding it into Jason’s underwear stroking his hard cock. Jason lets out a moan flexing as he continues to grow more and more but jason chuckles grabbing max dragging him so they were both at the couch.
“I see you got me all ready but if you don’t get undressed soon, i might not be interested anymore” Jason says pointing down to his cock as he slowly takes off his underwear to let the massive cock twitch free. Max eyes stare at it, looking down to see it stare back at him almost eager to be inside something. He quickly does his best to strip off everything as well but the second he gets his underwear down Jason literally grabs him onto his lap and places him ready onto his cock. “Hehe ready?” he teasingly asks before Max could even answer he begins to plow hard and furious into Max’s bottom. Max moaning and crying out in both pain in pleasure as he gets jerked up and down from Jason’s thrusting. Jason simply uses Max’s hole to enjoy himself moaning lightly as he just holds max with one arm now. Having grown enough and still growing he can feel Max’s hole squishing against his cock trying to fight back fruitlessly from Jason’s growing cock. Max’s moans getting more intense as it does so or crying out in more pain, Jason didn’t really bother to tell and just kept on pleasuring himself with his body. Using him as nothing more than an ass to fuck to get himself off, as he reached closer and closer to his climax. The two moaning in unison, Max finding some relief in the fact that he can feel pre cum leaking out of his cock making the thrusting easier on his hole, but the pleasure and pain combined sent waves upon waves throughout his body. Jason thrusts harder and more frivolously making Max moan and grunt loudly in the room, his hard cock deep inside max, pre cum already leaking out of his hole from expanding that ass wide with it, his body having grown massive in muscle and height nearly dwarfing Max who was still riding on his cock till finally with a massive powerful roar. Jason let loose a massive surge of spunk into Max, causing his lower stomach to expand with copious amounts of it.
Max gets flopped onto the couch cum oozing out of his ass, and finding his legs unable to move from being fucked to hard he simply twitches. Jason lets out a chuckle reaching into Max’s sweatpants pocket, “Here it is,call your parents max” Max’s phone is thrown at him, he looks at Jason a bit confused. “Tell them you will be home reaaaal late” Jason says with a more sinister smile, walking over to grip Max’s ass making him jump. “Cause i’m not through with your sweet ass yet”.