I think Rouge makes an excellent point about submission. This may make me sound naive or weak or something, but I find T's strength and power as a man a huge turn on. I think that's why I love his biceps so much. The amount of muscle and power in those arms. Even something as simple as bodily lifting me and moving me to a different place on the bed...
The other thing of submission for me, is giving up control. I spend all day, every day, so self-controlled, so prim and proper. I've always been very conscious of propriety, my whole life. That's another one of those things that's hard-wired into us, I think. The problem with that is that, sexually, it allows my brain to get in my way and things slow down. Not to mention, I'm always so self-controlled, I'd like to give it a rest and let someone else do the controlling for a change.