My current GF has been with probably 100 men. Maybe she didn’t fuck all of them but the one she fell in love with more than any other to this day had a very small cock and you can be sure he fucked her very well and made her cum and cum again.
My point is this. At the end of the day there is no way in hell a big cock carries the day. And if you don’t figure this out she will not be long for you and that’s a fact.