You thought you knew everything there was to know about sex, but here are some 14 facts about it that will fascinate you. All of which are science facts! Check them out in the list below:

1. A man makes enough sperm in two weeks to impregnant every woman on the planet.

2. Wearing socks increases the chances for an orgasm according to a study.

3. You will get more sexy dreams if you sleep on your belly.

4. Sex will burn more calories for a man than it does for women.

5. The scent of pumpkin is a well known aphrodisiac.

6. Half of everything that is bought online are sex-related.

7. 1% of women can orgasm from breast stimulation.

8. Professor Beverly Whipple was the woman who coined the term G-Spot.

9. Your nose will grow during sex because of the increased blood flow.

10. 50% of men feel their penis isn't big enough, while 85% of women are satisfied with their partner's size.

11. Women experience color changes in their lady bits during pregnancy. For some, that color change is permanent.

12. Sperm can survive within a woman's body for 5 to 9 days after intercourse.

13. Men and women have difficulty peeing after sex due to an anti-diuretic chemical the body releaes during sex.

14. The clitoris is twice as sensitive as the penis and contains 8,000 nerve fibers. The penis only has 4,000.