I know how you feel. When my piano teacher was abusing me I liked it too - I was an active and willing participant! The fact that I was only 8 years old didn't mean anything to me then, but it sure does now. Yes, I liked what he did with/to me, but I don't like what he stole from me; he destroyed any chance I had of having a healthy, 'normal' adult sex life. He twisted me in ways that even now, 41 years later, are still affecting me. It doesn't matter that I enjoyed it, or even if I asked for it; it was his responisbility, his duty as an adult, NOT to do what he did with a kid.
You are lucky. I get the impression that you are still young, and you have time to put your abuse in it's proper perspective and move past it without ruining the rest of your life. I wish these kinds of resources had been available when I was in my teens and twenty's. Instead, I had to make my way as best as I could, never understanding why I was feeling and acting the way I was. And so, I'm dealing with it now, compounded by years and years of patterning. Take advantage of the help you will get here; you'll never regret it.
Best wishes to you,
"That which does not kill us, surely makes us stonger." - Neitsche