I have to agree with eprime. I do believe that Sirius could be a bastard, perhaps not this much of a bastard, but if the author can pull it off, it just works. This was brutal and cruel and amazingly hot, hitting buttons I didn't know I had. Rape fic as a general rule, is really not my cup of tea, but this just works. I think its the energy of James and Sirius working off of each other, egging each other on to such an unforgivable act.