So i dont know what to do i started realizing while me and my gf were having sex she was moaning but she was saying ow so i started using lube but she told me some shit like lube stops the sperm or some shit its a hard decision for me cause it either hurt her and she likes it or dont and she not gonna like it. What should i do? I let her ride me dry and it does not feel good at all is there any women that can explain?