What length causes pain in vaginal sex?

suaige: thanks

I also called a couple of adult stores where they are also sold as pump accessories, but can be bought seperately.

I look them up. :)

Violetkitty: It's happened before where I had slept with someone who was rather "long" right before my period, and I was in so much pain afterwards, I could barely stand. It felt like my uterus was bruised.
Then again, I'm rather small in that department (I'm 5'2"), so it's easy for me to be in pain if it's getting to be that ime of the month.

Max is right....it's more to do with girth that anything. The vagina is a very elastic thing, but I imagine it stretches more easily lengthwise versus widthwise. At 6.5 I have hurt girls before when I tried to do too much too soon. My length was never really an issue, that they let on about, but if I humped hard right away, it's sorta ow at first.

That being said, once she gets used to it, that extra girth is the nicest thing.