Jokes aside though, sex as depicted on film and television is almost always perfect: zip fastenings never get stuck, no one ever gets their hair caught in their partner's watch strap, people never accidentally knee or elbow the other person when they change position and (unless it's porn), there's never any mess.
Real sex is, of course, often far from perfect, so this week we are asking:
What has been your most embarrassing sex "fail"?
How did it happen?
Were you able to laugh it off and move on, or did it bring things to an untimely conclusion?