...If this post is a typical reflection of yourself, I'd say you have some personal growth ahead of you. Your message isn't particularly straightforward and you project a big lack of confidence. Both those details will hinder attempts in dating. I'd suggest you take some time to figure out who you are and what you want. When you know that and you're comfortable with yourself confidence and clarity will flow easily.
Though the question of pairing geek with "popular" doesn't seem like a lasting match. It's been my experience that "popular" people are generally interested in superficial topics. On the other hand, geeks enjoy various sciences which you could discuss for hours.
Personally, I don't think sex for the sake of sex is a good idea. But it's your life/choice(s).
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"You can't take the skies from me"