I like missionary and cowgirl. Pretty boring, I know, but I fucking ROCK missionary like a machine, and when a girl knows how to ride me properly, it's more exciting than a roller-coaster (I just fear for my penis being crushed the first few times). I normally have a "safety belt", which it to say I hold her hips while she rides me, and one time the girl decided "no, you're going to trust me", upon which she ripped my hands off and pulled them behind my head twisting them slightly. I came buckets, she practically shot off my dick like one of those water rockets after they've been filled with too much water, that's how much I came.