Originally Posted by little_tippler

I think it's pretty clear that you lost your erection because of anxiety. Once you were relaxed again, that was enough to make you ready to go.

About your girlfriend being narrow - I know everyone always says there's no such thing, but can I say, there is. If the girl's pelvic bones are quite closely spaced together, that can make it "narrow" down there so to speak, and painful. Sometimes being that "narrow" can mean it's not possible to actually have a child naturally, because even though the pelvic bones widen during pregnancy, they don't widen enough for a baby to pass through the birth canal.

Another possibility is something called "vulvar vestibulitis". This is a little known and talked about problem and is characterised by a type of pain a woman may feel during sex in the entrance to the vagina that can be anything from a burning sensation to something a lot worse. Some women have this pain not only in the entrance but inside as well. The direct causes are unknown, which sucks, but there are several kinds of therapies that can be used in combination to help - from medication to psychological counselling. For some women this problem will accompany them all their lives.

It could also just be a case of needing extra lubrication and more foreplay.

Good luck with sex and I hope your girlfriend's pain is a passing one. If not, tell her she should probably see a doctor. Oh and congratulations on your first time.