Posting as anon due to personal paranoia;

I'm spending the night at my boyfriends in a few days. I've spent the night once before, which was the first time we had actually done it. But this time, I really want to be sexy...I've never actually tried to be sexy before, other than wear a short school girl skirt and some boots when we messed around once or twice. But this weekend, I'm going out shopping for some sexy lingerie and stockings, which is totally out of my comfort zone as it is. But I really want to be sexy for him, because I think it will be fun for both of us...

So I suppose my question is, how do I act really sexy when the time comes? Like, things I could say or do that would just drive him crazy? I'm not asking for tips in bed, I'm pretty confident in that aspect. I'm just talking about things I could do to be extra sexy. I've never really initiated it before, so I'm kind of wondering where to start.