Disclaimer: I own neither Buffy nor Firefly - they both belong to Joss.
---------------------------------------------
She said her name was Rianne. Xander didn't quite believe her, but she had these legs and these eyes, and, let's face it, was really hot. Plus, he'd just spent a year in Africa.
Right before he bent in for the first kiss, he remembered something.
"You're not a demon, are you?"
She looked up at him through amused eyelashes.
"Do you want me to be?"
Well, no, he didn't. It was only later, when he woke up in the emergency room with no money and no idea how he got there - plus an amused Dawn - that he regretted it.