There was a reason you didn't go around poking nests with sticks and disturbing the things within. Because it made a huge fucking mess like this. Let's talk about emotions, they said. Now look!
Running away looked more appealing than ever. He could throw away his cells and live in a forest and eat berries for the rest of his life... He could be a wild forest giant... Right? That'd work?
Before his brain could process it further, Dean's lips were on his again. Well, if Dean was going to ply it that way then Sam wasn't going to let go a second time. Both feet in, right? He kissed back, grabbing as much of a handful of hair as he could, but since Dean's hair was a lot shorter than Sam's, it meant he was also giving the roots a firm yank.