Very sweet and very poignant. Thank you for sharing.
My first reaction was "Eww, Pervert!Sirius is just wrong!". But then I thought about it and decided it sort of made sense. Sirius seems to have been frozen at the emotional age of a teenager, and I'm willing to believe he may have liked strong, smart girls like Lily Evans and now Hermione Granger. It said something about him that he realised any action taken now would definitely count as pedifilia. I do wonder hoe Remus felt when he read that. And it was a good thing Hermione voted to keep that info from Harry. All in all it was apretty good read for a quick character sketch on Sirius.