Your boyfriend obviously doesn't know a good thing when he's got it.
All my male parterns love sucking on my pussy lips. Mine are also long, and I love them, as I know all the guys I fuck love to lick and suck them. One guy in particular loved them so much, he asked me to have a cast made of my pussy...so I did. I may sound like a slut, but if loving my body, and especially my pussy, and loving the attention the men give them, then a slut I am happy to be. If I were you girl, I would get as many other men as you can to go down on you, I do, and I love it xx