UNTHINKABLE: Baby Sucking Man's Penis?

Saw this picture, at first I thought I was seeing double but taking a closer look at guy's zipper (which appears open) and the way he held the baby's head. I was convinced that the picture is actually as the topic has said. Why would a grown up do such? He even shared the picture.
I do not know where this happened but it sure looks like here in Nigeria from the way the baby was clothed.
Source: Topeorekoya