Husband & Wife
A man & lady, married for 20 years, aren't happy with their sex lives.
One night the wife comes home from playing bridge shouting, "Honey, Honey... Betty told me about a new position. It's called the 69. You put your head at the south end of the bed and I put my head at the north end of the bed. Orally, we please each other."
The husband agrees to try this position. During their session of 69, the wife passes gas, emitting a horrible stink.
The husband didn't think much of it and continued. A few moments passed and she did it again. The husband was gagging from the smell.
He pats the wife on the ass and tells her, "Hey honey, I can't take 67 more of these!!"