Ty's muscles continued to expand as he went to work on his growing member. His cock was so thick he couldn't his hand around it. With his other hand he began fondling his baseball sized balls, churning with incredible amounts of cum and testosterone pumping through his body making him sexier and hornier. He moved his hand away from his giant balls and began feeling his growing pecs, deep abs and massive thighs. He briefly remembered his constricting clothes as pain shot through his body and then was gone as his enormously powerful muscles burst the remains of his shirt and his pants at the seams, leaving the growing muscle boy completely naked. No longer constrained his growth accelerated and he was getting taller too, already passing six feet. He flexed his arm and smirked at his bowling ball biceps that grew larger and more powerful with each second. He gave a deep manly grunt of pleasure. He looked into a mirror and saw his trapezius muscles overtaking his thick neck. His shoulders were the size of beach balls and a grown man could lay across his massively muscled back. His now twenty two inch cock was so thick he coudn't reach around it with both hands. He closed his eyes as he felt the sensation rising. Ty roared as he let loose a massive spray of cum all over the wall. Finally he wish for the growth to stop, leaving him just over eight feet tall and 450 pounds of muscle and a 10 pound dick. Just then Dustin entered, awoken by Ty's deep roar of ecstasy. Ty suddenly got an idea how to humiliate Dustin more.