I can see where you're coming from, and why you'd be concerned.
Though I'm a virgin, and have never really gotten far with anyone, I used to feel much the same way.
For years, I thought that I needed to have sex to be happy, that that was something that I was really missing out on.
But at the same time, I'm absolutely terrified of both physical intimacy, and emotional intimacy.
I've always run away from relationships before they had a chance to get too deep.
But the funny thing is that I've found a way to be happy without it.
I'm part of the roleplaying community online, and yes, my RPs tend to be very sexual, at least from time to time.
I have a very close friend that I have 90% of these RPS with, and even though my relationship with her is far from sexual
(Hell, I'm gay, and have never even met her face to face)
But I'm still getting a way to experience sexual feelings, without having to even be near someone.
It's actually kind of nice, in my opinion...