Maybe you think it's only a second. To her, it is the experience of a lifetime. And as for the pain, that isn't necessarily just a second either. I have had experiences of where someone did something sexual (not even penetration) and I tolerated the pain instead of speaking out and the pain lasted days. This last time someone pushed up against me and it didn't go in, and already painful and this time the pain lasted about 10 days! I had to get a healing! It isn't fake. No longer a virgin, (strangely the first time wasn't much feeling at all) but nearly any of the times I've tried it it has been painful and the pain can also lead into worries or actuality of infections (bacterial or uti...)
I know what I need to do to get myself ready... probably a few months of working my way into it with dilators but really I don't care to do it because he isn't my boyfriend and it seems no need to go there yet....