Looking to give the perfect [rim job]- tips welcome!!

22 year old female here. Been with my 24 year old boyfriend for a year and a half. Our sex life is awesome and just recently we have incorporated a lot more anal play. One night recently after some drinks, one thing lead to another and I gave him a rim job for the first time.

Truthfully, I think I loved giving it more than he loved getting it. I'm fucking obsessed. I can honestly say it was one of the hottest things I have ever done in my life and thinking about it instantly makes me so horny. The other day it happened again and this time I had him on all fours while I licked his ass and jerked him off at the same time. Both of us loved it and he came a lot more than usual.

Both of us are interested and continuing to do this. Mostly me ;) I guess I'm just looking for tips on how to make it really good since I'm new to all this. What I do now is lick the outside, lick from balls to ass, and stick my tongue in as far as it can go (this is what we both love the most). I also slip my finger in him while licking around his hole.

Is there anything else I can maybe do to make him feel really good? Maybe something that you have enjoyed/been well received?? Any tips welcome. I always thought I would never ever give a guy a rim job. But now that I've done it? I swear there's nothing hotter than spreading his cheeks and eating his ass... It's to the point where I don't even want him to cum because I literally don't wanna stop licking his sexy asshole.

Ok I'm done now. Thanks in advance!!