### Comment:
What are some popular sex positions?

### REPLY:
Popular sex positions include missionary, doggy style, cowgirl, reverse cowgirl, 69, and anal. Missionary is a position where the receiving partner lies on their back, and the penetrating partner is on top. Doggy style is when the receiving partner is on all fours, and the penetrating partner enters from behind. Cowgirl is a position where the receiving partner is on top, facing the penetrating partner. Reverse cowgirl is similar to cowgirl, but the receiving partner faces away from the penetrating partner. 69 is a position where both partners engage in simultaneous oral sex. Anal sex involves the penetration of the anus.