Home decoration TV show

[heriros]

I'm looking for a fic in which some TV crew does a thing with Jim and Blair where they redecorate each other's rooms. Jim hates it at first, but gets pretty into it with hand-painting vines in Blair's room and really scrupulously cleaning everything, and the TV guys are confused by why Blair keeps everything simple and easy on the senses in Jim's room.

I'm pretty sure it was slash.

Thanks!