[ The way Keith looks at him, that gentle touch, the things he says - it's so soft and sweet that Shiro could cry. He doesn't, though it's a near thing, his eyes shining briefly with wet in the temporary overflow of emotion. That's a crisis very narrowly averted by the fact that something stupid and hopeful in the back of Shiro's brain pipes up sounds like he's proposing! and Shiro has to spend a good ten seconds fighting down the flutters that though sends through his chest.

Eventually, when he's recovered as much control as he's going to get, he tips his face close. Not a kiss, just... a nuzzle. Something warm and comfortable. ]

I knew from the moment you kissed me back you'd be too much for me to handle. Glad you're gonna give me time to get used to it.