>>8909What do you mean by "a bit"? Did you even tell him?
Usually lovers get a lot of enjoyment out of fulfilling the other person's desire, beside the most extreme ones (and "a bit" sub sounds vanilla).
Otherwise, you can start very lightly by taking control when you're on top, moving yourself pinning his arms down etc.
My partner got interested when he realized it's a great way to feel desirable, seeing your lover doing the legwork.