[Makes a helpless, very small sound on his exhale at that, forehead shifting against Shiro's where they touch, near nuzzling. God.]
So much. [He both agrees and marvels at the words. No one's been through what they have, he'd told him before, but... more than that, no one has loved each other like they have. Keith feels it in every part of himself as they whisper the words to each other.] Shiro - I love you.