As you grab the flashlight to feminize your some more, you accidentally switch the light without noticing. "More amazing than ever before even," you say as she is softly stroking your cock. You aim the light at Melissa from this position and turn it on, but to your horror, Her upper body and face become more masculine rather than feminine. Her breasts disappear completely and her chest becomes entirely flat, somewhat hairy.
The hair on her head, on the other, seems to retract back into her head. What used to be a wave of hair reaching beyond her shoulders, quickly turned into a short hairdo. The worst part of this all, however, was seeing her face turn into that of a boy. Though her boy face was still somewhat cute, your sexuality didn't comply with this sudden change.
In your surprise, you accidentally drop the flashlight, which rolls off the bed and falls off the floor. Your half-boy girlfriend stops stroking your penis when she sees the look on your face, and you try to move back a bit. "What's wrong?", Melissa asks you with a confused face. "This, what," you stutter. You are thinking very quickly and try to make your face look less disgusted. Melissa doesn't even notice her appearance change, so she won't understand what is wrong. "There is... nothing," you say, "I, just... I got so surprised by your beauty... I dropped the light."
Alright, all you need to do is get that light back and shine it on her again in the correct color. Melissa never needs to know.
But it isn't that easy. The young man in front of you smiles and... kisses you, her arms wrapped around you. You feel your girlfriend's flat, hairy chest against your own, her manly lips on yours. You quickly move back. "Melissa stop! I should grab that light!" you say, a bit louder than you should. Your girlfriend looks at you surprised. "Melissa?" She asks."Don't you mean Melvin? You know I don't like girly names..."
If anything, the passion has died now. You turned your girlfriend in a boyfriend with a female lower body.