Little Johnny came home from school with a note from his teacher,
indicating that "Johnny seems to be having some difficulty with the
differences between boys and girls," and would his mother, "please
sit down and have a talk with Johnny about this."

Johnny's mother quietly took him by the hand, upstairs to her
bedroom, and closed the door.

She said, "First, Johnny, I want you to take off my blouse..."
Little Johnny unbuttoned her blouse and took it off.

She continued, "Now take off my skirt..."  He removed her skirt.

Take off my bra..." which he did.

And now, Johnny, please take off my panties." 

When Johnny had finished removing his mother's panties, she said, 
Johnny, PLEASE don't wear any of my clothes to school any more!"