### Comment:
Can you provide a list of popular sex positions?

### REPLY:
Popular sex positions include missionary, doggy style, cowgirl, reverse cowgirl, and 69. Missionary is when one partner lies on their back while the other partner lies on top, facing each other. Doggy style is when one partner is on their hands and knees while the other partner penetrates from behind. Cowgirl is when one partner straddles the other partner and controls the rhythm and depth of penetration. Reverse cowgirl is similar to cowgirl, but the penetrating partner faces away. 69 is a position where both partners engage in oral-genital stimulation simultaneously.