Mark groans as his muscles expanded slightly, giving him now the appearance of an athletic jock. He has a clearly defined six pack, two large pecs, strong arms and legs and a muscular neck, all of which was now bushed with a touch of tawny hair. His erection grew a little bit more, taking his meat up to 10cm and the erection showed no signs of abating.
Watching him giving in and his subsequent growth was sorely testing your restraint. Your cock was literally pulshing at this point, a slow flow of pre leaking out of its tip. "I'm sorry, I just couldn't stop myself - it just felt sooo gooood" Mark half drools as it's clear that he is still in the curse's hold. "Snap...out...of...it" you try, taking one of your larger hands to try and knock some sense into him. But before your hand could reach his face, Mark grabbed it with surprising force. He looked at it, and noticed that there was still some of your cum on it. He licked it, clearly enjoying the taste as he moaned.
As if a light bulb had suddenly been switched on in his brain, he bolted upright "What am I doing?" he cries as he looks over his larger form. "There's got to be a way for us to beat this"