"Ryan" said Jim, "I want you to put on your jockstrap. I want to see if I can make it break under the weight of your penis".
"Really?" Ryan asked as he put on his jockstrap. "I'm not so sure..."
Ryan had a fairly average cock at 4 inches soft. It wasn't anything to be proud of, but it also wasn't bad either. Well, it was about to be something.
Jim brought the balloon up to his mouth and said "Control Ryan's cock size!". Nothing happened.
Then Jim blew into the balloon. At the same time, Ryan felt a tightening in his jockstrap. Looking down, he saw it was bulging much more than it did a second ago.
FWOOOF! Jim blew again. Ryan's jockstrap was starting to get stressed, especially since it was made for something about half his size. He looked like he was 9 inches soft now.
FWOOOF! Jim blew some more. Ryan's jockstrap strained to contain his now more than a foot long cock. With a snap, it finally broke, letting Ryan's 13 inch cock flop and hang down in front of him.
Jim quietly said "Release" and walked up to Ryan. He said...