Sky shrugged. "Anything's worth a try after all. If I can't have you, I won't have anybody. I made a promise to myself that the man I give myself to will be the only one who gets to have me at all."
"I love you, though. So I'm okay with that. However, now that my dad won't let us see each other... Well, I'm kinda scr*wed unless he changes his mind."
"It's still not a sure thing. At least he got what he wanted; I'm not going to be having sex. Besides, it was only a one time thing - for now, at least."
It wasn't just the danger that Sky was in, but also the fact that she didn't seem to understand that her father was protecting her and there was no need for her to sleep with Xander that was making Loki so mad. He also didn't want Sky to end up like him; he wanted her to keep her innocence for as long as she could.
Well, Xander didn't want Sky to end up like him either, for that matter. He was just, well, a teenage boy. "Yeah, he kind of made his intent clear to me. And I won't force you, ever, to do anytihng you don't want."