I love the kiss-on-the-cheek-headbumpstroke-thing that Brian does in 214. (At the begining of the "Then you can tell everbody you're hung" - "I already do"-scene ;)
I adore the way Brian hugs Justin to his side as they are leaving Woody's and then procedes to kiss and rub his nose on Justin's cheek at the end of 401. So cute!!!
The whole Shower/Bathroom scene in 504. Brian can't keep his hands off Justin. First in the shower, with all the lovely touching and behind the ear kisses. Then the way he sort of grabs Justin and pulls him to him when they have left the shower and then the way he sort of hugs Justin from behind.
The way Brian sort of strokes Justin from cheek and down in 505 when he comes home...right before the conversation takes an ugly turn.