A couple that was married for 20 years always made love with the lights off.
Well, after 20 years, the wife felt this was ridiculous. She figured she would break him out of this crazy habit.
So one night, while they were in the middle of a wild, screaming, romantic session, she turned the lights on.
She looked down... and saw that her husband was holding a battery-operated pleasure device -- a vibrator -- softer and larger than a real penis.
She went completely ballistic. "You impotent bastard," she screamed at him, "how could you be lying to me all of these years? You better explain yourself!"
The husband looks her straight in the eyes and says calmly:
"I'll explain the toy... if you explain the kids." 
