While research may proclaim that lovemaking should last anywhere between three and 13 minutes [1] that doesn’t mean that the rest of us are leaving egg timers set at 7.3 minutes — the average session length — by our beds, ready and waiting. I’m not saying everyone needs to be practicing the art of tantric sex [2] and going at it for hours upon hours, but seriously, is breaking the 15-minute mark so bad? Ladies, studies aside, how long is too long for you?

Source [3]