### Comment:
Can you list some popular sex positions and their descriptions?

### REPLY:
Popular sex positions include missionary (the receiving partner lies on their back while the penetrating partner is on top), doggy style (the receiving partner is on all fours while the penetrating partner enters from behind), cowgirl (the receiving partner straddles the penetrating partner and controls the rhythm and depth of penetration), and 69 (a position where both partners engage in oral sex simultaneously). Each position offers different sensations and can enhance sexual pleasure.