Aaaaah, this is AWESOME!!! What an amazing idea. I love Snape like this, so brutal and just looking to completely ruin Sirius. It's so awful but also so canon! Snape would TOTALLY do this! ;alksdjf;slaf. So awful and sad for Sirius, though. I want him to tell Remus what happened, and have Remus beleive him, and then they both wreak vengeance on Snape and get together because of it. :D