You were Sirius Orion Black and Remus John Lupin's son, but you weren't born.. Sirius was pregnant of you, something unusual for a boy but it's the Wizarding World, anything could happen, like that, a man being pregnant even if some peope think it's impossible, Sirius is proving them wrong by being pregnant of you.

Sirius was only pregnant of 5 months of you and you were already kicking in his stomach, Remus was shocked too of course because of that information but they were both happy even if it was strange, very strange.

Right now Sirius was laying in the bathtub, reading a book, he was very focused in the book but sometime he felt you kick in his stomach, Sirius couldn't believe he was pregnant of you, his little son.