I've made some edits, tell me what you think.
A man, who is tired, has chosen to go to sleep. His room mate is a woman, who has a habit of sleepwalking. The girl went to sleep, and that night, she sleep walked into the man's bed. The man begins to dream of indecencies such as sex or rape, all the while being sound asleep. The man usually chooses to sleep naked and the girl is wears only a tee-shirt when she sleeps. Then, while the man is dreaming about aforementioned indecencies, the man has sex with the woman while remaining unconscious. Also the girl is dreaming, and in that dream she is being assaulted. The man wakes up, and notices the rather scandalous situation and panics. While he is panicking, his dick remains inside the girl. The girl wakes up with this, notices the situation and punches the guy in the face, all while screaming ''pervert!''. After leaving the room, the girl notices that the room was not her own.