As Mark tries to chew the candy before he chokes, his confused muffles become moans. He closes his eyes as he reels his head back. He takes his hand and rubs from his chest down to his crotch, moaning from the chocolate Rachel gave him.
She then sits down, crossing her legs and watches as Mark continues to rub himself and grows a big boner. She feels her nipples harden at the thought of what is going to happen.
Mark continues to rub himself as he feels his chest start to become sensitive. His hands run over his nipple and he pulls his hands away with a sharp gasp at how tender they had become. They start to harden and his mind is distracted to his major boner that is pushing his pants. He moves toward it and unzips his zipper, he rubs his fingers over the head and moans. Noticing a slightly higher pitch in his voice. He begins to jerk his cock off, moving up and down his shaft, until he feels his hand going past his dick. at first, he believes that he is imagining these things. Finally, to satisfy his suspicion, he looks down at his shlong. He squeals as he notices is dick is starting to be crawling back towards his body. He tries to find his balls, but during his pleasure, it seems that they have already moved back into his body.
Rachel watches with her mouth open,seeing the disturbed look Mark has, as he sees his pride crawl back into his body. She knew what candy she gave him, what she only meant it as a tease, a joke. now her boyfriend was becoming her girlfriend!