Boyfriend Probs

My boyfriend wants to eat me out because it turns him on and I want to let him but I worry too much about, what if I taste bad and what if I didn't shave properly and stuff. I am a hygienic person. I'm clean and like to stay clean but I'm a worry wart. Obviously, I've never been eaten out and I want to please him but the idea of it freaks me out. What should I do?