I love these AU's where Remus and Sirius raise Harry....well...Remus raises Harry AND Sirius. Harry introducing them to Ron and Hermione. "So, are they...your dads?" "Nah, they're like my uncles." "Are they together-together?" "What? No, they're just bros."
xD This is hilarious. Even though I don't understand why people make Sirius out to seem stupid/play stupid. He was brilliant and he knew it, and probably loved to show everyone that he was cooler, smarter, better than them (except James and perhaps Remus of course)