What's your opinion on kissing?

Okay so when I first had my first kiss I loved kissing. But now I've been with over 11 guys and I'm a lot more mature and I just feel like kissing is fucking weird. Lol. Does anyone else feel that way? I don't even wanna kiss anymore. It is so weird to me it doesn't turn me on. Is it because I haven't been with a guy I've really liked in a while or is like something that is normal once you get to a certain maturity level?