What is the rulings/punishment of Islaam on a girl who sucked her own breast?

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.

It is most likely that if a woman sucks her own breast she will incite her own desires; and if she does this to get this pleasure, she is sinful. This is also a means of committing illicit sex. However, we do not know any punishment that has been set by Islamic rules in this world or in the Hereafter about it. Nonetheless, if a woman does this in order to get rid of milk that harms her and could not find any other means to do that, then there is no harm for her in doing so. 

Allaah knows best.