There's an older couple whose hearing is starting to go. The still enjoy marital relations, but yelling at each other in the dark to find out if the other wants to have sex really kills the mood. So they decided to create some hand signals. Her: If you want to have sex tonight, touch my left breast. If you don't want to have sex tonight, touch my right breast. Him: Ok, if you want to have sex tonight pull three times. If you don't want to have sex tonight, pull 50 times really fast.