Wedding and a White Christmas

Getting from "I do" to "I don't" before anyone finds out!
On a whirlwind Christmas visit to Las Vegas, and after a long night of merrymaking, Emily and her best friend, Mark, stumble into an Elvis Chapel and get married.
The next morning she realizes her mistake. Although she loves Mark, and has since childhood, he's not marriage material.
For Mark, it's not that he has commitment issues-or any issues, for that matter-but marriage would complicate things. He and Emily are friends and he doesn't want to mess with that. Besides, he knows Emily is on the rebound. She's not over her failed engagement to Dan the idiot.
On top of that, there's Emily's aunt. Myra doesn't like Mark and if she learns about this elopement ... well, let's just say, there will be no Peace on Earth this Christmas!