A couple found themselves feeling a little "frisky" so they
sent the children outside to play, went into the bedroom,
and
locked the door.
After a while, the older boy grew tired of playing and came
into the house. He noticed odd noises coming from his
parents'
bedroom and went over and spied through the keyhole. He
ran
out to get his sister, brought her inside and told her to
look.
As she looked through the slot in the door, she said "Oh,
sure,
this from the woman who tells me not to suck my thumb!"