Well, I've been doing a lot of reading about this.. and most of what I've come up with is that its extremely rare for a vagina to get LOOSE without having a baby or gaining/losing a lot of weight.

But I'm sort of concerned.. I'm an averaged sized man and my girlfriend uses a dildo whenever distance is a factor (due to travel or whatever).. I read that sex wont loosen a vagina (too much, if at all) but frequent usage of a dildo will? Because it's unnatural, hard and there's constant pressure.. is this true? First off, the dildo ISNT a hard one, it's more realistic and pretty floppy actually. It isn't one of those obscure giant ones either. I'm just concerned if this will loosen up her vagina at all and if so, how much? We are both young and I don't want this to happen.

Also, I was wondering if a womans vagina is looser, does she lose sensation and doesnt get pleased as much anymore?

Sorry if this post is a bit graphic.. I don't know who else to ask or where to find info :\
Thanks for your help