A mailman was delivering his mail during the Christmas season. At one house the door was opened by a beautiful blonde woman wearing a sheer negligee.
"Would you like to come in?" cooed the woman.
"Sure," replied the startled mailman.
She led him up the stairs and made love to him. When they were finished she got up and handed the man a dollar.
"Why the dollar? asked the puzzled mailman.
"Well," replied the woman, "when I asked my husband what to give the mailman for Christmas he said, 'Just give him a buck and fuck him!'"