Man comes home from his Dr. appointment, very sad look on his face.
Wife asks what is wrong. Man tells wife that he only has a few hours to live...won't make it 'til morning.
His facial expression brightens, and he says since this is my last night on earth,
how about a little

She says of course that is the least she could do.
About an hour later husband says he would like to do it again. Wife says sure we can.
Another hour or so hubby says 'just one more time'.
Wife says, "Come on now, I have to get up in the morning, you don't."