I mean if you're okay with the way you are, don't change. There's a minority of guys who will like that, but they're still out there.
I personally am nothing like that. I've always been able to talk about sex without feeling grossed out and I love having sex, I get around, I'm promiscuous :)
You don't have to talk about sex if you don't want to but you may want to find other friends who also don't like talking about sex. I'd still encourage you to masturbate and get in touch with your body. To be afraid of your sexuality and your body isn't healthy and if you let this become a serious problem then it will hinder relationships
I'd say you may have other aspects of your personality (and maybe appearance ) in the way. You don't need to have sex or talk about it to get a guy to ask you out or like you or kiss you...unless you reject guys left and right because of your sexually repressed mentality ?