I can relate. I think about sex all the time. I have a pretty high sex drive as well. It's been that way since I was a teenager. I think everyone just vibrates on a different frequency sexually, and that's okay. As long as you're not hurting anyone, it's all good. (My opinion...) I too had various forms of abuse in my childhood, but I've never acquainted my sexuality directly with it. I know, though, that that's different for different people, and chances are that you know yourself better than anyone.

It also sounds, though, like you're using it - the feelings you get from fantasizing, etc - as a form of escape. I have had that as well, to my advantage as well as to my detriment. For example, when I was about 13 or 14 I wrote a story about a high school couple in the 50s - a boy and a girl from very different backgrounds who fall in love despite all odds, and at the end the boy ends up having to leave and she's broken-hearted. Well, since then (and I'm 34 now, so, say, in the last 20 years) I have written and re-written at least a dozen versions of a sequel wherein he comes back to town years later and they're both more mature and, after an adjustment period where she punishes him for leaving with her coldness, they enter a fiery affair. For me the writing and rewriting was a way of acting out my sexual fantasies and desires, ones I didn't think I could access in a physical way. It was also a way to explore my desires. But for a couple of years there, prior to about a year and a half ago, it became my whole world; I fantasized about it all the time.

I met my partner a year and a half ago and that changed. Somehow I don't fantasize about it anymore. I think it had to do with loneliness, and a way to discharge sexual energy in a way that was safe because for four years prior to meeting my now-partner, I was not only single, but celibate, although I still had a high sex drive. I think it might be worth exploring some of this with a therapist, if you feel safe doing so, if the fantasizing bothers you and/or if you find it interfering with your daily life. Otherwise, you may just wish to explore it on your own: journal about it, talk about it with someone you trust (like a best friend, etc), or find another way to process it and learn more about it.

That's my two cents. Hope at least some of that helps you...