Thinking about getting used turns me on

Yes, I have an anal kink but I'm a strait guy in that sense, that I'm just interested in woman. That said, the thought of getting fucked and used just for pleasure, even forced is extremely hot to me. In my fantasy it's usually a girl with a strap on or trans girl but not exclusive. I'm not sure where that comes from, but I think it's mostly the loosing control part that turns me on. I also know how good it can feel, to have something in your butt. I know I'm not alone, but I don't think it's very common. I would like to know what you like about "getting used", if you share that kink with me. And if you ever had it, did it life to the expectation?