Facebook rule: posting female nipples will get you banned, unless a baby is sucking on one or more nipples in which case it is allowed.

What they dont say is how old the baby has to be to qualify... if a 20 year old is doing the sucking, ban, if a 20 month old is doing it its fine.... So whats the cutoff before a person sucking on your nipple is too old to be allowed by the rules?