We consulted some sex experts pregnat adult performers — people who make sex their business — to see what positions are the best for Sex and being pregnant to enjoy. It seems that while yoga-tastic, wildly inventive advanced sex positions may be great for a change now and then, what women love the most is really missionary. Missionary is one of the most popular sex positions for a reason: Adult performer and fetish model Casey Calvert agrees on missionary as a favorite. But besides that, missionary is my number-one position because I can control the angle of my pelvis to make sure he's really hitting just the right spot. I can do the same in cowgirl, I'm just more of a girl-on-the-bottom kinda girl!