She'd never been well and truly drunk before herself, but knew what it did to other people and was a little concerned about her ability to handle Xander if he drank enough for his more violent side to come out. She would never admit that, though.
Roxy had no idea that he as still trying to impress her, especially since she thought she made it clear that she already liked him. In her mind, that meant he had already crossed the biggest hurdle and had nothing further to prove. His question caused her to blink in shock. "Well, so that nobody else sees what they're doing and tries to get in on it, but drugs aren't the only thing they'd be doing in there. Sometimes, they do... sexual things, like not just making out but getting all touchy-feely and naked and stuff." She answered, feeling awkward at having to explain it.