being eaten out NEED ADVICE!!!

so the guy i’ve been seeing, (basically my bf, he hasn’t asked me out yet but we care about eachother etc) always asks to go down on me when we’re doing stuff.

he’s done it about three times before, i loved it but the last few times he’s asked i’ve said yes but he always can tell when i’m unsure so he ensures i know he won’t do it if i don’t want to, so he hasn’t the past four or five times we’ve done stuff. but he’s asked, everytime. we were also talking about new things we’d want to try and he only asked for one thing, and it was for me to sit on his face. i told him once im more comfortable with him going down on me normal ofc we could try and it is something i’d be into.

but the thing isn’t that i don’t enjoy it, i’m just self conscious. i feel almost insecure and ik he loves the way i look there and stuff and i shower twice everyday and especially before i go to hangout with him so ik in my head it’s always clean but i also don’t know why i become so nervous when he goes down on me. i feel like it’s just him being down there being able to see everythinf and smell and taste and i’m always worried he won’t like it or he’ll get turned off. i rlly want to be comfortable and not get so nervous when he asks to go down on me!! because i do enjoy it, i just get very nervous, almost anxious?? i also do have anxiety but i don’t think it’s that, although it may contribute to it.

i just need some advice, ways to boost my confidence down there and i would also love to know if anyone else has been or has a similar feeling!! i really need advice and some help (: