Aaah my 13 month old has taken to playing with his private parts. What's the best way to react?

Your baby's exploration of his body is completely normal at his age. After babies gain control of their hands and limbs, they'll start exploring their bodies. For baby boys, the penis is an interesting and convenient body part to reach for. If you are really uncomfortable, give him a toy to play with and this will usually direct his attention elsewhere. When your son is old enough, tell him when it is or when it is not appropriate to touch himself. Most children give up exploring when they go to school.