Sex advice?

Okay, so I’ve never been in a serious relationship before or really any type of relationship that I’ve had to talk much about this, but my boyfriend brought up to me last night that he was unsure if I was actually satisfied whenever we have sex.

It caught me off guard because honestly, it’s the best sex I’ve ever had and I thought it was pretty obvious that I always enjoy myself, plus we both always finish, I guess he just can’t tell when I do? And it’s not like I don’t moan for him or anything... I guess my question is: is there something more I could be doing? Has anyone else had to do something extra to make sure your partner knows that they’re satisfying you?

(Not including oral sex because he’s never gone down on me so we haven’t had to worry about him doing a good job, but if you’re here I’d also take some advice on how to open that conversation of him maybe trying it)