Lost in his fantasy, Jacks hand quickened its pace to match the speed his phantom Christy was sucking. He felt the unmistakable burn of semen at the base of his dick, and prepared for release, when he was suddenly blasted from the reverie of dream-Christy's hot mouth by a jet of ice-cold water. "Gwaaaaa!" screamed Jack as his blood filled penis instantly shrank and his aching testicles retracted close to his groin.
Jack shivered violently as he used cold water to rinse the soap from his body and shut off the tap. Muttering imprecations and swearing under his breath, he stumbled out of the shower, groping for a towel, and tripped over the bathmat. Lurching forward, he fumbled for the sink, but off balance and wet, all he managed to do was knock several things crashing to the floor, and firmly smash his head into the wall.
The door to the bathroom flew open, and in the doorway stood Christy. A look of horror and concern washed over her as she rushed to help her fallen friend. "Oh, Jack! Are you all right?" she asked as she ran experienced fingers over his nose, face, and shoulders and down his arms. A surgeon by profession, she immediately went into "fix-it" mode as she knelt next to the dazed man splayed out on her bathroom floor. As she pried his right eyelid open and gazed into it, Jack suddenly realized that the person he'd just been fantasizing about while he beat off in the shower was now kneeling next to his wet, sprawling, and completely nude body.
In an instant, both his eyes were open, and with a startled "AWK!" he tried to cover his crotch with both hands while scooting backwards away from her ministrations.
"Don't move." Christy said plainly, firmly. "I've got to assess your condition and make sure you don't have a concussion or a serious head wound." Jack was flabbergasted. He'd never heard Christy take this tone with Chris, or with anyone for that matter. It was as if she was a different person. Dizzy from smacking his head, he sat still with his back against the toilet, and let her touch him while he tried to cover himself, as best he could, with his hands. All he could do at this point was hope she didn't notice, which was unlikely.