Hmm . . . an Idea, huh? Well, those can't be resisted, so go for it! Put in whomever you like! I have to say, I'm rather Trio-focused in my memory of HP (that means I don't really remember much about Sirius except that Harry loved him) but go ahead. Not many people write about Hermione much anymore.

Now I'm curious!

(And yes, that other thing is best ignored. ;-))