A Double Date

"You better get ready or we'll be late for our dinner date," Sarah said, after breaking off her kiss. "Dinner date?" Sarah sighed. "Don't tell me you forgot about our double date with Karyn and Biff." "Karyn and Biff are married?" Sarah looked at him oddly. "Yeah." "Sorry. I just can't see them being together." "That's what you said about *us*, if you recall. And *we* turned out okay." It was just strange that Jon's best friend ended up with Biff, who in the normal reality was Sarah's boyfriend. Was it just coincidence or did the stone make it like that on purpose? "Jon?" Sarah asked, breaking him out of his thoughts. "Huh?" "Don't you think you should get ready for the date?"