Mark looked at his penis in shock. He felt the new skin with his hand. It was soft, and sensitive. A shiver ran up his spine.
He felt all of a sudden more masculine. He swaggered about playfully in the bathroom, watching his new dick wag from side to side. It was then in the mirror that he noticed something else, his pubic hair, thickening ever so slightly, ever so slowly, curling and darkening.
He ran his hands through it, pulling gently at the warm, expanding mass to make sure it was real. And it was. Instinctively, he checked underneath his scrawny arms, and sure enough, his armpit hair was developing just the same.
He wanted to shout with joy, but the walls in his room were very thin, so he controlled himself. He sat down naked, on the cold floor by the bath, legs wide so he could watch his crotch thicken with new hair.
But nestled amongst the hair, he watched in amazement as his penis ever so gently swelled. At first, he thought he was becoming erect, but he realised that it was not becoming harder. It pulsed gently, thickening, lengthening. He touched it. It was so warm, and heavy.
Underneath, his balls grew too. His scrotum got a few shades darker, and more hair appeared. This was becoming too much for Mark, the usually reserved 19 year old layabout. He now really was becoming hard.
Suddenly, the changes slowed, and began to stop. He stood up - as he did so he felt an extra 4 inches of penis press into his stomach - and looked in the mirror.
On his skinny body, there stuck out two thatches of thick hair from underneath his arms, and a curling bush above a brand new dick.
Of course, the change was not complete, not nearly. But it would be a good few more hours before the next transformation began.