I found some info on hitting the cul-de-sac on some women’s magazine website. It says nothing of the size the penis has to be :D , simply that the woman can change her positioning to allow the man to reach the CDS:
> Keesling says she’s found a new trigger site she calls the cul-de-sac deep within the vagina. Located near the cervix, it only becomes accessible to his penis when you become extremely aroused and the muscles around the uterus lift up. To find yours, next time you’re making love in the missionary position, lift your legs up in the air and back toward your body. Then suck in your stomach. This combination of moves should allow his penis access. "When my boyfriend and I first tried sex with my knees pulled back toward my ears, I felt his penis hit a very sensitive place inside of me I had never felt before," recalls Sue, a 29-year-old clothing-store manager from Duluth, Minn. "Then I had a tremendous rush of pleasure that radiated through my whole body." <
Bonus! The New G-Spot!
Start: 22 Mar 04: 6.5" BPEL x 4.6" EG & 6" head. As at: 1 Jan 05: 7.5" BPEL x 4.8-4.9" EG & 6.3" head.
Re-re-start!: 6 Feb 17: 6.9" BPEL x 4.9" EG & 5.5" head. As of: 23 Feb 17: 7.0" BPEL x 5.0" EG & 6.0" head.
Ideal: ASAP: 8+" BPEL x 5.5+" EG & 6.5+" head But will continue if the going is good!!