Here's a thought, it's the first thing that ran through my mind as I was reading your post OP.
Aside from the sex, you have a good relationship with your husband. Have you ever considered that he might like to be the bottom in this relationship? I know you said that you were the bottom, but what if you switch it up a bit? Maybe he'd like for you to flip fuck? I know some gay couples who do that, and some who don't have anything but oral sex. It's just a thought though.
Sometimes couples end up with a selfish lover. One who never initiates anything, and who's only interest is getting self satisfaction.
Otherwise you seem to have a good relationship with your husband. Communication is important. Suppose, he's wanting to be the bottom for a change. Is that a deal breaker or are you willing to be the top in this relationship?
