I'm 12" and I fuck my girlfriend from the living room while she's in the kitchen. It's open plan.
There ya go!
How deep IS the vagina really?
I'm a nurse midwife and I've hand my fingers in hundreds of expectant moms.
As well as my brother in law who is an OB/ GYN doc. Together we've examined a lot of women. I can use my fingers to feel the cervix. I do use some pressure to do so. No, I don't find taller women to have deeper vaginas. I'd say 4-5 inches average. The vagina can expand more when aroused,but not much.
Think about it. Just how far could the penis enter? You are not going to enter into the abdominal cavity. There is an end to the vagina. Even if she's had a hysterectomy.
I can feel my cervix and did often check it in beginning of my pregnancys. I was worried. It was a natural thing for me to do. If I was home alone and had any kind of pain, gas, I'd check.
So can you. Know whats in the vagina. It's not a big mystery if you know what it all looks like. Get a little flash lite and look. Let her know you want to understand her body. But, you do need her permission !
It's not a big mystery and it's not the tunnel of no return.
Next time you think your 12 inches is getting lost in some vagina, measure you erection. Measure her from the vaginal opening ( visually) up to her waist.
Now get an anatomy book and tell me where you are.
From reading some of these posts I get the idea some men don't want to know what's in the vagina. There seems to be some fantasy about the penis disappearing into her.......somewhere.
Maybe I'm too clinical, but it's difficult for me to ignore the facts. My first posts here were to answer posts from males who were convinced they were entering the "second vagina". The stated they could feel themselves entering the cervix.
Anyway, this is a very informative site
How deep is the average vagina, and does it elongate when something's in it? | Go Ask Alice!