"Ashley's Senior Prom is Friday night."
"HER WHAT?!"
"Shh... calm down. Hey, I know it's not your idea of a good time, but when we get you switched back to normal this weekend, I need Ashley to remember having gone to her Senior Prom and it being the best night of her life."
"But..."
"No buts about it. Roy Milford so help me, if you don't do this for me, I will be very, very annoyed..."
At this point a couple things crossed Roy's mind. First, he wouldn't exactly be able to explore his relationship with Stacy when he got back to being himself if she was supremely pissed off at him. Second, the last person to have possession of the Role Swapper was Stacy. Technically, if he got her mad enough, she could use it to make his situation much, much worse.
"Looks, like I'm going to the prom."
"And you're going to be a perfect lady there with your date."
"DATE?!"