whoa wtf happened? Everyone was drunk right, and you asked for a kiss? While I personally think it was weird, I have seen many people do that. I can imagine a girl feeling you went too far, but you can certainly explain that you BOTH were drunk, you weren't thinking, that's not who you are, etc. Of course once a group of people labels you creepy, it's very hard to get rid of that label.
pm me if you don't want to discuss in public