Masturbation!fic, Jim/Blair, very NC-17

[likeaglass]

Hey all! I'm looking for a fic where, for some reason, Jim and Blair start jerking off in front of each other. I think it's from Blair's POV, and he starts out thinking about girls, but gradually starts watching Jim and thinking about him while jerking off. The boys get together in the end, and it comes out that Jim was always thinking about Blair. Aww, isn't that sweet? :D

ETA: Found! (I think!) Surrogate, by Annabelle Leigh.

ETA2: Does anyone know of any other masturbation!fics? I wouldn't mind reading something new with it as a plot point. Or a PWP point. You know, whichever.