Sexual only, although I can imagine moving beyond that in a very limited way. I'm not a service-oriented sub, I figured out recently that I (sometimes) want to please, but never want to serve.
We have a provocative dynamic. I can be a brat, and I'm sure some would accuse me of topping from the bottom. He enjoys my smart-assed antics, and will punish me if I cross the line, which happens occasionally.
Usually the smart ass in me shuts up pretty quickly when appropriate, and his evil-Domly side coming out subdues it almost completely.

We don't have much of a punishment dynamic, pretty much only the above-mentioned punishments for overdoing the brattiness. We do play punishments, which are just a thinly veiled excuse to give me some new bruises. He is a sadist, and I'm a masochist, pain play constitutes a large part of our dynamic.

I think that's about it, or atleast as good a summary as I can produce at the moment.