Boyfriend wants to eat me out-I’m nervous

My bf and I have been together for 5 1/2 months and we haven’t had sex yet. He’s been expressing a lot that he wants to eat me out. I’m nervous because I don’t want no smell to creep up or nothing. I have good hygiene. Is it normal to feel nervous and anxious about this from a girls perspective? What should I do to make things easier for myself?