So I'm not sure how to feel. Caution very explicit material.

He licked my butt. My bf super enjoys oral sex and I don't mind showing him I love him by doing that for him. Lately he wants to 69 all the time and he wants me on top I have Anxiety about being on top because my butt is in his face. Well he got very passionate and started to finger me while he was eating me out and sucking my clit. While I was recipricating by blowing him he lifted me hips scooted me back and started licking and fingering my back and he was just so excited by it. I am not sure how to feel about it it wasn't bad it was just not bam. I couldn't orgasm from it because I was paranoid. Should I try to do it back to him?