John P. Wiffelphafer was sitting in the men's room just down from the Medical Research / Pleasure Island Volunteer's.
John now 18 and looking forward to life had longed for some male equipment. Doctor's too busy with normal wants and needs told him to forget it and gon on with life.
When John saw the add for Medical Research as a volunteer and free.
Free experiments by the choice of the donor. Well he asked for some balls and a pecker to go with'em.
He had been released and told to walk around the park. Then by afternoon if he desired to he could go home and enjoy life. John felt great as he sat looking at the two baseballs hung in a black skinned sack and his penis. Wow his penis was held in a black, rather leathery sheath and it was attached to his lower belly. He was sure he could screw with it, mostly because to it's length. The member was as he stroked it's soft self about eighteen inches long and a good four inches round at the base.
A card given him offer some possible Allergic reaction might happen and if so report to any Jackass Sponser in the park.
As he sat the cock grew large, so large that John got a little scared. As the great member bloomed at the end a hefty amount of precum dripped on the floor. Now stroking wildly he felt a sure well up in the testicles and gush out in several bursts.
Horse like globs of semen and cum plastered three feet away on the back of the stall door.
John was shocked at the massive thrusting feeling as he shot the load.
Pleased and delightered he packed his withering monster back in his pants. The sheath was a small problem, as it stuck out above his belt. Yet he managed, meanwhile he hand an itch on his butt. It felt like a bug bite and seemed to spread the more he scrathed.
Dropping his pants he looked over his back and to the rear. The top of his butt seemed more rounded and he saw straight brown hairs. the hair felt like hair on a shoe brush. As he brushed his hand over them he felt his new monster cock push out of it's sheath.
John stopped touching his new ass hair and his cock bored back into it's dark home.
"I need help he thought," so he walked quickly to the door for the Research office." The door had a sign, ( OUT ON CALL BACK AT 3 P.M.)