To me, sex is like basketball: a pleasurable activity you can do with alone or with others, with varying degrees of formality. And pickup basketball can be quite invigorating. After four years with an exclusive, committed partner, they usually know at least four to six things that you reliably like doing. Casual sexof course, can suffer from its newness or lack of intimacy on occasion—we all have lackluster one night stand stories. But casual sex offers novelty. Because the delicate bubble of casual sex is very easily burst, here are some guidelines for making casual sex… well, casual. Make like the Boy Scouts and be prepared. Own more than one towel. Own at least as many pillows as there are sex participants.