NOTE- I'm sorry I've been away for so long! Oh, and thanks to everyone for reading! :-)
*FLASHBACK*
Sirius, then four years old, was at a family reunion, the last place on earth he wanted to be. Even back then he knew his family was compiled of lunatics. Especially his twelve-year-old cousin, Bellatrix. Right now, she was eating a cupcake while standing on her head. Of course, that was an improvement to what she was doing moments ago, running around in circles while singing about unicorns...
Sirius blinked and became aware of his surroundings. Bellatrix was not there, neither was anyone else, except Nymphadora. Who was behaving exactly like Bellatrix did when she had any sugar at all. This was not good. If Sirius' memory was correct, which it was, Nymphadora is likely to go on a violent rampage, scream so shrilly that he couldn't even hear her when in dog form, and then explode stuff.
KA-BOOM!
And there was the explosion...