Physical incompatibility with a partner? /u/followmesamurai Sex

I’ve been with my gf for 2 years now. But our sex sucks, does not matter how hard we try. It’s just I don’t feel much when I’m inside her.(yes I did research and we tried all the different methods and positions).

For example my two previous gfs were different. I felt like their vaginas had perfect size if I can call it? I mean I would always feel so good and I could cum easily.

Is it possible that anatomically my penis and her vagina aren’t compatible ?

It’s ruining our relationship…

Some people say such thing doesn’t exist , but how I can explain our current issue then? Please help.

Edit: I do feel better when she lies on her stomach and I’m behind her, but I still feel that I can’t accept sex where I only can feel slightly better by doing it only in one position.

I’ve been with my gf for 2 years now. But our sex sucks, does not matter how hard we try. It’s just I don’t feel much when I’m inside her.(yes I did research and we tried all the different methods and positions).

For example my two previous gfs were different. I felt like their vaginas had perfect size if I can call it? I mean I would always feel so good and I could cum easily.

Is it possible that anatomically my penis and her vagina aren’t compatible ?

It’s ruining our relationship…

Some people say such thing doesn’t exist , but how I can explain our current issue then? Please help.

Edit: I do feel better when she lies on her stomach and I’m behind her, but I still feel that I can’t accept sex where I only can feel slightly better by doing it only in one position.