I was wondering how many other guys and gals can relate to this. When my girl and I have sex, I can go all the way in, or within maybe a 1/4 inch of all the way in, but only in certain instances. When she's on top she goes down on me slowly until she consumes me. Her eyes sort of roll back and there's very little room for movement as I can feel like I'm at the "end" of her vagina. None of this clit grinding stuff, but certainly a unique feeling and a special oneness. When she's actually riding me she's either way leaning forward with her ass in the air, or just going up and down, but either way only about 5-6 inches of my dick can go in during fast rhythmic movement. Basically it's the same with missionary, I can go all the way in slowly and just sort of hold it there or move very slightly which feels amazing, but when I'm pounding away I can only go about 5-6 inches in a thrust. So this may be an obvious question, but would this mean that the vagina when "tented" or aroused is on average is 5-6 inches deep but can be "stretched" another 2+ inches? If this is the case does the stretching not feel good if a guy is pounding really deep and forcing the stretching but can feel fine or even great if he slowly moves deeper and and expands the vagina this way? This might explain how some woman mistakenly complain of cervix pain during intercourse when in fact it's the guy hitting the back of the vagina hard (this can't feel good either). I do realize that a guy can hit the cervix, but this is usually when the girl isn't aroused or he's working a bad angle. I believe that most vaginas, like most penises are roughly the same size, but does the amount a woman's vagina can "stretch" also differ, perhaps due to pregnancy or other factors?