If you’re a guy, there’s a very good chance you could use some vagina facts and tips. That’s not a knock on anyone, but the truth! There aren’t too many men who know much about the vagina other than the fact that women have them. We’re about to help change that today.

Thanks to some tips from an OBGYN, Barb Dupree, M.D., we’re here to give a few vagina facts that will serve all men well, as Dr. Dupree gave some A+ advice on how to navigate the vagina. From the most intense spot to thoughts on going from anal sex to vaginal sex, here’s a quick sex ed lesson.

Sugarcookie: Is There One Spot On The Vagina More Intense Than Another?

Dr. Dupree: “About 20-25 percent of women can have an orgasm with vaginal penetration alone, but most women need more direct clitoral stimulation to achieve orgasm. The area of sensitivity in the vagina is the ‘G Spot’, for which there is an abundance of discussion and disagreement about its existence — although, as most scientists would now agree, there is an area that may, for some women, produce intense arousal and orgasm. The G-spot is defined as an erogenous area about the size of a nickel located 2 to 3 inches inside the front wall of a woman’s vagina. Because of its approximate location, the G-spot can be devilishly hard to reach, especially in the standard missionary position.”

Sugarcookie: Is There A Sex Position That Helps Relieve Vaginal Pressure Or Discomfort?

Dr. Dupree: “There are many potential causes of painful intercourse, so the best position is likely to vary from woman to woman depending in her specific condition. In general, woman-on-top is likely best because she has more control for angle of entry and depth of penetration. This is where asking is always a good idea!”

Sugarcookie: How Dangerous Is Going From Anal Sex To Vaginal Sex?

Dr. Dupree: “The risk of STIs is the same, or perhaps higher, with anal than with vaginal penetration. E. coli is a bacteria or ‘bug’ that lives in the bowel… Anal intercourse can sometimes cause this type of transfer, particularly if it is immediately followed by vaginal intercourse.”

“There’s more likelihood of trauma with anal intercourse, since anal intercourse requires complete relaxation of the rectal sphincter muscles before penetration. Trauma or injury to those muscles can lead to loss of muscle tone or control over time. That makes this form of intimacy not entirely “safe,” but, more importantly, consent freely given by both partners is an essential feature of sexual activity in a loving relationship. Never assume your partner is ‘OK’ with anal penetration, always get permission/consent.”

Sugarcookie: OK, What’s The Most Important Rule Men Should Know About The Vagina?

Dr. Dupree: “You shouldn’t really ever put something in the vagina that wasn’t designed to go there. The vagina is covered in a very thin layer of skin that can be easily injured and irritated. Foreign objects can quickly pose a problem by traumatizing the tissues, and, if not an immediate issue, then very possibly later.”