You were the son of Remus John Lupin, you knew Sirius Orion Black who was Remus' bestfriend since Hogwarts. But what you didn't know is that Sirius got a son who looked like him but younger, his name was Sirian Black.

Today you and your father were sat Grimmauld place since you got informed two days ago that Sirius got a boy with the same age as you, you were about to meet him.

"Where is he?"

You asked as you sat by the table with your father and Sirius.

"Upstairs. He's taking a shower, I think."

Sirius said to you with a smile, he was excited for you to meet his son and Remus shake his head, noticing Sirius' grin.