I look at a photo posted on the Internet. Seems that some boys were teasing each other. One .. ?
teasing, was to link the child to turn topless by the wrists to a chain link fence and tickled, and another was pinch the nipples with clothespins. Is not it painful? Is not that the children like nipples sensitive and delicate as adults? I would not let not my kid play this way.
Pinch your nipples and children judging by their reaction.