One night a married lady is having passionate sex with another man at home, while her husband is out drinking with friends. In the middle of the act, they hear the front door, "I think your husbands home!" "Oh don't worry, he probably is gonna be too drunk to tell that anyone is in the bed." she replies.
The husband walks into the room and gets in bed. After a while the husband says, "Honey, why are there six feet in the bed?" His wife replies, "No there aren't!" "Yes there are!"
"If you don't believe me then why don't you get up and count them." His wife suggests So he gets up and counts the feet in the bed, "Oh whoops there are four feet. Sorry honey."