Uncomfortable!!

I've had sex with 3 different guys, but I've always kept the light off and made sure their penis was the only thing touching my vagina. I feel so awkward and uncomfortable with my vagina because I have the large flappy wing-like inner lips. I'm really embarrassed and ashamed of it, so we don't do foreplay and I don't receive oral. My boyfriend wants to eat me out so bad but I'm terrified that he'll think my vagina is ugly and gross or something.