While Dustin was drying off, Ty sneaked over towards the door and notices Cody, a guy he goes to school with, working out.
“Oh, Dustin! You gotta see this! I’m gonna make Cody’s muscles blow up!” Ty grinned, as he began to concentrate on the skinny boy’s legs. Cody was a short, skinny guy with black, short, straight hair and brown eyes and he was skinny as a rail. Cody was just hanging out in the gym to do cardio. He had done some exercises with some dumbbells, like squats and calf-raises, but nothing major. Ty decided to have some fun with Cody, just because he knew Cody from school, and Cody had always been nice to him.
"Cody, you are fixing to finally start making some gains, ALOT!" With that Ty started to do his work. “Time to grow really BIG, dude! I’m tired of seeing you as a skinny guy!”
He concentrated on Cody's calves first and thought that they could use some major assistance. Cody felt a funny tingling in his calves and started to rub them. He noticed they felt like they were a little firmer.
"All those calf-raises are finally paying off" Cody thought, as he got up from the wooden bench where he had just finished doing some bicep curls with two dumbbells after having completed a set of calf-raises.
Ty decided to make them a little on the big side for a teen. Cody heard a stretching sound and then felt a cramp-like sensation in his calves when he looked down to see his calves ballooning up. His calves continued to magically swell before his eyes and he wasn't quite sure what to do. His skin was now stretching paper thin as Ty willed them to grow even larger. Veins like thick, long ropes were starting to pop out all over his calves and they really took on a dramatic diamond-like shape. Cody began to have the calves of a distance runner or a professional soccer player!
“Whoa! What’s going on with my legs?” Cody whispered to himself, as he looked down and began to feel the increased strength and weight from the larger muscles in his legs.
Then he noticed his thighs were having similar sensations. While his thighs began to swell thicker and sideways, he pulled his shorts up and out of the way, so he could see his thighs following the same pattern as his calves. They were growing at an amazing rate, but Ty decided to make this go a little faster.
“My quads! How on earth is this possible?” Cody gasped. “I’m growing without even working out?”
Veins were already starting to pop out on his thighs when his shorts started to rip apart. First the right leg followed by the left. Ty made his underwear turn into a pair of biker shorts. He began to resemble a pro-wrestler, a gymnast or a rugby player with his huge, muscular legs.
"What tha-?" Cody thought. "How the hell is this happening?" Cody’s thighs were now measuring a stunning 44 inches.
"Hoped you liked that, Cody, because this is gonna be fun!" Ty snickered, and with that he started working on the rest of Cody's upper body. “I’m just getting warmed up!”
Cody’s stomach magically pulled in real tight while his chest heaved up and out. Rows and columns of abdominal muscles formed over his flat stomach, giving him that “ripped” look. His arms were starting to fill up at such and enormous rate that his shirt started to rip around the sleeves. Mighty biceps, triceps, lats and deltoids formed over his arms and shoulders, making him hulk out and grow to become much bigger and wider than he was just a minute earlier! His back was ballooning up just as fast as his chest. The shirt could take no more and finally with several loud rips the shirt was finished. Luckily, Ty saw this and he magically transformed Ty’s torn shirt into a large tank-top, which revealed his bulging biceps and his mighty, muscular arms.
Cody was looking around to see if everyone was looking at him, but Ty had already made sure that everyone in the Gym did not even notice the fantastic transformation which had just taken place. Cody was just another big, muscular teen, who worked out frequently and who had recently bulked up while working out in the gym.
Ty continued Cody's growth with no signs of stopping. Ty was just having way too much fun making Cody grow big, and he wanted to reward his classmate for always being nice to him.
Cody was in a state of ecstasy by the sound of his skin stretching and the feeling of everything enlarging. Finally, Ty decided to make Cody’s chest a massive 45 inches around with arms of 25 inches. His stomach had gone from a 4-pack to an 8-pack and finally a 10-pack. There had never been a 15- year-old that could beat a bodybuilder, but now there finally was, and Cody was the result.
When Ty stopped his little growth spurt and thought about how well he had done on Cody, he noticed a small problem.
"I can't let him be that big and yet stay that small downstairs" he thought. "Let’s see how well spandex really stretches" and with that Cody noticed and intense tingle in his groin.
He looked down to see his dick look like it was moving. He stared at it to see if it was his imagination even after everything that had already happened. Then he saw it move again. Cody cringed with pleasure. Then it started to swell like crazy. Again he could hear his skin stretching and see the spandex stretching along with it. Ty had it at the size of a pop can and thought "Maybe he can be a little bigger than that!”
“Ohhhhh man! This… is… crazy! Uhhhhhhh….” Cody groaned, as his cock continued to swell in his spandex shorts.
Cody’s dick swelled up even more and continued to swell for a few more seconds before stopping. His dick was at least 7 inches thick. Then it started elongating. Not going down his short legs, but just massing up in the crotch. The shorts were starting to reach their capacity and he didn’t know what he was gonna do. Cody was completely helpless as Ty made it grow some more. Cody was starting to lose control and Ty knew it so he made him start oozing precum.
"There is no way I can fit this monster in any of my pants" Cody thought.
“You’re gonna be one BIG BOY, Cody!” Ty laughed to himself.
Ty made it grow again. Cody could tell that his dick was now at least 14 inches long. Then he felt his testicles heave and move. Ty decided that this boy would have an even bigger pair. Cody could feel them filling up and growing. When they reached the size of baseballs they started to stretch the already stretched-out biker shorts. Ty thought cantaloupes were nice and that’s just what he made Cody’s balls swell to.
Cody stood there, staring at his crotch and wondering if it was done. He started to walk around when Ty willed him to lose control right there. He didn't even let him get hard when he lost his load in his shorts. His cum was flowing all out of the material that now looked painted on him. Finally, Ty magically wished the cum to disappear, and everything was cleaned up, leaving Cody standing on the gym floor, flexing his huge muscles in front of the giant mirror, with a wide grin on his face. His life had changed forever, and he had a new hobby: working out and lifting weights. Ty was happy with his handiwork, and smiled when he saw another nice guy become transformed into a young bodybuilder. This inspired him to do it again and again.
Ty admired his new creation and decided to have fun with someone else, but who…