Brian having sex with Michael, but still being with Justin

[lumcheng.livejournal.com]

So yeah, title pretty much says it ^^°
I'm searching for fics, in which Brian is together with Justin, but at some point he sleeps with Michael, giving him the fuck he was waiting for, but still being with Justin in the end.
Extra brownie points for Justin finding out and there being a big drama scene *_*

Recs anyone? (Oh and please no fics with 34543+ chapters and the like ^^° I already have tons of looooong fics on my to-read-list and I need something shorter now and then.)

And - I already read "Pretty Good Day" by Sandra Gia.
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EDIT: Some links already in the comments, but feel free to rec more, thanks ^^