Cunnilingus... Not

Hey ladies, so, I give my fiancé bjs now and then, but kinda lose the fire for it sometimes because he has this opposition to eating me out. He's done it before briefly once or twice but I want it again... He's a germophobe and said that asking him to lick me there is like asking him to lick my asshole... I love him very much and wouldn't leave him over something like this, but I do get depressed (especially after he said my vagina and asshole were basically the same) because I feel like I'm less attractive to him. 
Any tips for making oral easier or more comfortable for him? I know I can't change him and I don't want to, I just want to feel confident and sexy and somehow him avoiding oral is blocking me from that in the back of my mind.