Your thoughts became clouded once more as a greedy and lustful urge wormed into your mind. Your instincts' screamed for self control, but another instinct demanded your attention. You gasped as your felt your balls swell and double in size as you once again became painfully erect. You turned to meet your erection, which was stiffly pressing against your slightly tone but wiry abdomen. Your hand reach down and, with only a moment of hesitation, began to stroke yourself.
You took it slow this time, renewed with a sudden expertise in how to make this last. You moaned and squealed as you wiggled in place, your flesh bubbling with a delight beyond anything you could describe. As you continued to pump and twist at your member, your mouth sucking at the air desperately for breath, you felt a fury of heat shift though your flesh. Your nipples began to swell slightly and soon you felt your pecs swell ever so slightly. They began a little larger and sturdier with denser muscle.
Your legs too grew slightly stronger and, which was what caught your attention as your stroked yourself, hairier. You'd never been a hairy guy, but you watched as your legs became lined with dark hairs. They weren't shaggy, but they were not sparce. You moaned again, twisting in place as your underarms began hairier too, begining to stink with a jock-like smell that you couldn't quite place.
Eventually the pleasures took you and you came an a cupful of spunk and you sighed.
Something was happening here.