The pale Ben in Jack's body moved through the horrified crowd in his blue speedo.
Jack was exploring his new body, formerly his own penis. He found that he could flex it. Ben felt him twitch. Jack gained more control and began to thrash back and forth.
The crowd watched the bulge in Ben's speedo move back and forth, some of the girls giggled. Jack felt the blood pour into him and he began to stiffen. The crowd saw the cockhead poke above teh rim of the speedo and laughing broke out. Ben had stopped and was now moaning in uncontrollable pleasure as Jack was grinding himself between teh fabric fo the speedo and his own pubes. Jack felt waves of pleasure run along the entire length of his aptly designed body. Then the pressure grew and he felt a jet of white hot liquid pass through the center of his being and spew from his "mouth."
To the crowd's amazement, this jet hit the pool, 10 feet away and did not stop. Jack kept twitching and cumming fountains. As the flow slowed to a dribble, Ben gave a scream and crumpled to the ground.
The crowd cautiously moved forward. One brave soul took Ben in Jack's pulse. "He's dead," was the verdict. The crowd filed away.
Jack woke, hoping his nightmare was over. The blue fabric above him told him it was not. He was still a penis, now attached to a lifeless body.
Ben's annoyed consciousness floated in the pool, composed of billions of sperms.