I say try doing it, or letting him do it to you, just after you get out of the shower. It will let you be less self conscious about the whole thing. Dont let him be down there for that long until you get more used to it. Let him please you orally for about 5-10 minutes then pull him up to you for sex. Some other helpful idea's might be to use something like a lube so that he can use his fingers easily on you at the same time then when your ready for him to stop so you can have sex you'll be more than ready for it. Not saying that you wont be super wet from all that, but just that since your a little self conscious about it all right now maybe you wont get "as" excitied, so the lube will help cover that as well as add a fun touch to your sex life.
Good luck. Oh and btw, if you choose to use the lube idea get something that is color free and fragrance free, I love ready lube,since it's clear and tasteless & ordorless. The reason behind this is because you dont want him giving you a kiss after he just ate you out with some strawberry scented/flavored lube with red caca all over his face like a clown :) or have your vagina smell like cocomut all day long! Hehehe