If I understand you correctly, you're not talking about putting the penis through the cervix and into the uterus, but pushing the penis all the way up to the end of the vagina, so that the cervix is positioned on top the penis. Is that correct?

I think people thought that capslock was asking about going through the cervix. Capslock, can you clarify your question?

Here are a couple of pics that illustrate the area of the vagina "beyond the cervix" that joejack was talking about. In the first pic, I think he's suggesting that the penis can reach beyond the "rippled" area of the vagina into that space that is right up against it. In the second pic, this area is labelled as the "fornix." Joejack, can you confirm that this is what you meant?

http://www.brooksidepress.org/Produc...p/Cervix2a.jpg
http://www.afraidtoask.com/spSTD/anatwomenside.gif
http://www.thedenverchannel.com/2006/0209/6866335.jpg
http://www.scienceclarified.com/imag...09_img0493.jpg

Here's a pic of insertion of a female condom. If I understand joejack correctly, he's talking about reaching the upper part of the inner ring. I'm guessing that when most people have intercourse, the penis only gets as far as the lower part of the inner ring.

http://www.thehawaiichannel.com/2006/0209/6866305.jpg