[However soft and quiet it is when he speaks, the reassurance carries the full weight of his certainty above all else - he can see how Shiro believes in it and that's enough. More than enough for him. All the fondness that Shiro shows him with his gaze is reciprocated back fully too as Keith looks at him and smiles just so.
Maybe he's said things like this in just as many words before, but it's never been more purposeful than now somehow. He continues to hold him with one arm while the other shifts between them and curls around the hand Shiro pressed to his face with a gentle squeeze, holding his hand too. Promising in the gesture as much as his words.]