You were Sirius Orion Black' son and you were 15 years old and today your father invited Harry, Ron and Hermione at Grimmauld place where you live. Because you were at home, you were relaxed so being shirtless wasn't a problem.

Your father Sirius was talking to the Golden Trio in the living room of Grimmauld place, Ron and Hermione were holding hands while sitting on the couch because they were together, and Harry was sitting at their side, on the couch as Sirius sat on the other couch in front of them.

Harry, Hermione and Ron were gonna sleep here tonight because Harry asked and Sirius asked you and you were okay with it, you got your father's hair and eyes.