Vagina Indian Burn??

So whenever my bf and I have sex more than once when we're done it hurts down there a lot. It almost feels like we had sex for an hour if I was completely dry. I dont really have a problem with getting wet but I'm thinking that maybe I'm wet enough on the inside but not on the outside?? I'm not really sure but it hurts like hell and I'm looking for advice, please help a sister out!!!