I first thought like Kitkat but it is like punishing yourself because of nothing...
If you feel like kissing your partner, you kiss and if you feel like sucking his manhood or whereever basicly, you do it. Isn't it your emotions, your instincts that control or drive you wild during sex, your hormones flow in your blood and you become what you are. That is how we enjoy it all, freedom in our spirits let us enjoy most of our inner universe...
I feel so sorry for your BF. My cousin is the same kind of guy...
Your bf doesn't know what he is missing at all. He will probably never find it out, because ''you can bring the horse near the pool, but you can't force him to drink''
I really don't want to effect your relation sweety but, if I were you I would look for another bf soon, at least I would consider twice to go to another stage with him. That vanilla kind of guy, may be very problematic in the future.