There are plenty of threesome sex positions that help everyone feel included, comfortable, and, most importantly, have a good time. "Some partners think they want a threesome, but haven't thought about all the potential feelings that could manifest after," says Shani Hart, certified sexuality coach and co-owner of Hart's Desires. "People who are thirds in a threesome need their emotional and sexual needs considered," adds sex educator Rebecca Blanton, aka Auntie Vice, co-host of the Fat Chicks on Top podcast.