Find something platonic that you both enjoy. That way, your enjoyment is natural and will shine through effortlessly. He’ll see how much honest fun you’re having with your mutual interest and enjoy your enjoyment. In an equal relationship, he ought to be doing the same for you, by the way.

Oh, and if you’re not enjoying sex with your boyfriend right now or don’t want to have sex yet, take that off the table for the time being. If you’re not truly happy being sexually generous, then you need to stop being sexual with him until you both figure out how to proceed. Pushing yourself to do sexual things for your boyfriend that (1) make you uncomfortable and/or (2) don’t take your desires, personality, and safety into account will only lead to resentment (both his and yours).

If you want a boyfriend romantically but not at all sexually, then it’s time to have a serious conversation about both of your relationship goals.