I love him... but I'm not getting satisfied sexually😕

He's my best friend of 13yrs and we have finally decided to make it official. We are the same age 25, but I am more sexually experienced than him. He don't do oral on me I compromised to that..cool..but I am very active and very freaky...a lot of things I enjoy he do not like but is willing to try them for me. when we have sex it never last long the longest is like 20mins😯 and I want more.. I find myself maturating when he falls asleep😞. I'm OK with him wanting to try new things with me but I just don't want him to do it because I want him to I want him to enjoy it too.. I also battle being a sex addict..he doesn't know😬....I just love him so much I don't want to hurt him from cheating because of my desires😞.. Please any GOOD advice will be appreciated Thank You!