Ty was having so much fun with his powers at the gym, that he couldn't get enough of it. The greatest thrill of all was the idea of growing the younger guys bigger than the older guys, who were normally expected to be bigger in the first place, due to all those years of working out in the gym!
Ty had to go to the bathroom and walked towards the back of the weight room, where the men's locker room was located. The locker room was large, containing many narrow, wooden benches, countless rows of steel lockers, and a dozen showers. There was also a sauna and a heated pool.
As soon as Ty had walked past the area where the urinal was, where he took a quick leak, he spotted another teen walking in. The boy was about a year younger than him, and he walked into the special, handicapped bathroom and locked the door behind him.
It didn't matter, Ty could still "see" everything what the boy was doing, thanks to his amazing psychic abilities, which he promptly put to use by scanning the boy's mind and by invading his thoughts and feelings. Ty could see and hear everything the teen was seeing and hearing at the moment, even though Ty was sitting on one of the wooden benches in the locker room, while the teen was in one of the handicapped stalls.
Ty quickly found out that the boy's name was Stephen. He was on the baseball team, and he often came to work out in the gym. He was wearing a tank top and shorts. Stephen had short, spikey hair and blue eyes. He was skinny but still athletic, even though he wasn't exactly muscular.
Stephen opened his gym bag and removed his baseball uniform. He then started to take off his shirt and his shorts. Finally, he was only wearing his jock strap, and was about to wear his uniform, when Ty decided to put his powers to work on him.
"Time to bulk up, Stephen..." Ty grinned silently.
Stephen suddenly felt an odd prickling sensation in his chest. It was as if an outside force was making his muscles become very tense. Then, without warning, his pectorals began to inflate, very slowly! They pushed outwards, slowly and surely, becoming bigger, rounder, and heavier. They also pushed sideways, as they made his shoulders and arms wider at the same time!
"Huh? What was that?" Stephen wondered, as he looked down.
He quickly turned around and checked his reflection in the mirror.
His pecs continued to swell, pushing outward even further! He was becoming really big now, as his chest was sticking out from his upper body by several inches.
"Hey! What the--- This can't be happening!" Stephen exclaimed.
Next, his biceps began to vibrate. In fact, they almost became alive, as they started to harden and inflate like balloons, which had air being pumped into them!
"WHOAAA!! My muscles! This is CRAZY!" Stephen shouted. "I... What..."
Stephen began to panic, as he continued to grow.
His biceps inflated until they were as big as melons, becoming big, hard and feeling heavy in his arms!
Next, his abs, quads and calves all began to inflate, all at once!
"Hey! This isn't possible! Help! Somebody HELP ME!!!" Stephen began to shout, as he stumbled to the hard, tiled floor.
Ty didn't want him to shout, so he silenced his vocal cords.
Stephen tried to scream, but only air came out of his mouth! He couldn't say a word!
In the meantime, as Stephen tried to push himself up against the wall, his quads and calves continued to grow even bigger, adding layers of thick, hard muscles. His calves inflated like footballs, and his quads grew wider and deeper. His leg muscles were instantly covered with long, thick veins as well.
Stephen finally managed to hoist himself up against the wall, thanks to his increased strength. His body was now a lot heavier, too, but he had sloly become used to it. He stumbled back to his bag, where he pulled out his baseball uniform.
Ty instantly adjusted the uniform, so that it fit his expanded body. He was able to put on the socks, shoes, the pants and the shirt, and everything fit him perfectly. Stephen now resembled a big, muscular baseball player!
Ty gave him his voice back, as Stephen left the locker room and left the gym, walking to the baseball field.
"There he goes... ready for action!" Ty smiled.
Stephen would hit three home runs in the next game.
Ty was happy with the results of his work, and he was looking forward to growing some more of his friends at the gym...