I used to assume that when a couple moves in together, that automatically translates to tons and tons of sex all the time. Now that I'm in a long-term relationship of my own, I can see how tons and tons of sex all the time could be a little... well, exhausting. But that doesn't stop me from wondering how often couples who co-habitate are actually doing the deed. Is there a specific number for how often to have sex when living together? Well, a recent Reddit AskWomen thread asked ladies to share how often they have sex with their live-in partners, and I think their answers speak for themselves. If you thought there was one "right" number, think again: every couple finds what works best for them.