Okay, lets start off with the fact that I definitely squealed when I saw Dakota cause yesssssssssss RvB..........!!!

But um. Cr. In terms of Sirius, these two could maybe have some history? Jack has been involved in the Hillingdon clan a long while (bout 20 years at this point) and assuming you go that route, they could have something to go off of. Jack was originally involved with looking for his missing daughter and wife.