Leonard's fingers twitch as Mick reaches for his hand, but he doesn't pull away, mostly just watches curiously until he looks back up at Mick. "Yeah?" His lips twitch in the smallest of smiles at that comment.

He nods a little, "Okay..." His eyes trail back to their hands again when he feels Mick's fingers brush across his again. His stomach does a weird flip and he looks back up again. "Promise?"