<human>: My boyfriend and I have been together for about a year now. In the past I have multiple partners at a time and love exploring my sexuality. I've now decided this is the man I want to settle down with. I love him a lot and he loves me too. He know about my past and has helped me realize my self-worth. *Problem?*
Lately the sex hasn't been quite satisfying. I've tried different positions...but he has no rhythm and has no idea on how to push me over the edge. When we have sex it's usually in doggy style and he acts like a horny dog.
I love being submissive. Being spanked, tied...But he's old fashioned and can't see himself doing those things to me. Lately, I'm the aggressor for sex and then left frustrated when he gets his nut before I get mine. What can I do to help him open up sexually? I've told him about this and he suggested a threesome, but I know in the end that would not fix the problem. Now he's bringing up the idea of getting married. I don't want to get married knowing that the sex is less then great.
I'm so desperate for sexual release I've considered cheating, but I don't want to hurt him.

Can you condense the text into a few key points?
<bot>: My boyfriend doesn't please me in bed and now I'm tempted to do something I'll later regret. What can I do to help him open up sexually?