He noticed his shirt got tight REAL quick as if trying to catch up with Paul's body.... his chest grew as if his pecs were trying to push their way out from the white T-shirt. That was now just a thin layer of fabric. As his shoulders broaden VERY, VERY nicely, Jack then noticed that his once scrawny arms were now massive with rock hard mounds of muscle. His biceps were getting so muscular that the thin layer of fabric.... once known as his shirt was now ripping almost to shreds. But the changes didn't stop there... They continued downward, his stomach now changing to a four pack.... to a six-pack of rippling muscle that now caused his shirt to stretch to its maximum, shred and then fall to the ground. Jack couldn't believe it.... as he looked at Paul.... he noticed that there was a strange feeling coming from his boxers. His legs had now started to become longer, leaner muscle.... His thighs alone were 10 times there original size, causing his boxers to start to ride up his thighs. As if to make room.... Jack was a little curious to see what else would happen. Jack then noticed that his less then average size member was starting to become something more. First it started out as there was a bulge forming in his boxers. Now that bulge was getting bigger...MUCH bigger...as Jack looked in the mirror to see what was happening, he was starting to get aroused. Jack's member fully erect in matter of minutes...he re-arranged his "shrinking" boxers as if he didn't want Paul to see his Johnson at full salute. But suddenly it was like his member didn't want to hide, because it still wasn't done. As Jack stood there at full erection. The top of his growing member's head was now beginning to peak thru the waistband as it just kept going up ward against his muscular HOT body. Jack started to caress his newfound member slowly in curiosity, as he was making his way downward, he noticed that his sack was now the size of two sport softballs. This made jack even more aroused as if that was possible at this moment, he had never seen his cock like this before. His once less the average sized member was now a massive masculine COCK. It still wasn't done; it started out as 4 incher, then 7 incher...now it was an extremely impressive 15 incher, which was now starting to fill out with almost infinite girth. His now unbelievably massive package was no longer being kept in Jack's boxer.... or at least what was left of them. At this time Jack was no longer worried if Paul would see his junk...hell why would he, because what was left of his shredded boxers, Jack just ripped off the rest with one of his large manly hands. Now that the 2 boys were...I mean men were done changing...they both stood looking at each other with mixed emotions. "Paul what happened to us, I mean how..." as Jack was interrupted by Paul's now deeper sexier voice. "What the hell happened to you, I mean look at you!" said Paul as he was trying to look at his own changes at the same time. They were both confused at how this happened, extremely shocked at the end result.... As Paul kept looking at his new muscular body and impressive package, he couldn't stop looking at Jack's NEW massively-god like body with cock to match. Paul started to feel a little strange, not because for the chemical, but by the fact of Jack. "What is suppost to happen now to us" said the 2 men to each other. Then Jack said with his deep, sexy, booming..."Well since we have no where to go, and both look the way we do..."