The night he first had sex with Megan

Nick remembered that he was uncomfortable with making the first move with Megan. He was a bit shy with such a beautiful girl. Then one night she surprised him by being inside his apartment bedroom when he got home. They had planned to go to a show together but she did this instead. She seemed odd at first but then she jumped him and they had the wildest night of sex he could remember. Then she left. The next day she brought him dinner at the apartment and he made the moves that led her to the bedroom. They never spoke of it again but things moved more smoothly in their relationship from that point on.
As he thought of that night the world melted and reformed in the shape of his bedroom. The phone rang. He reached to answer and realized that he was still in Megan's body. The machine answered and he heard Megan say, "Nick, it's Megan, yeah I'm not feeling well so so I'm going to have to cancel on the show. I'll bring you dinner tomorrow to make up for it. Good night."
Nick looked at the machine. That's not how things happened. Then he saw himself in the mirror. Wasn't that what Megan was wearing that night? Oh shit. Maybe this was what happened. He reached down and erased the message.
"Am I going to be able to do this?", he thought as the door opened behind her....