[ It's tempting to give in when his eyes are as sharp as that, but— ]

Your eyes. [ He gently reaches to brush Khun's cheekbone, just below his eyes. He remembers when they flashed that beautiful, beautiful purple. ] The deeper violet they shine, that means I've left my red on you. Just in the way you've left your blue on me.

[ Not that any part of him is actually turning purple, but it shows in everything else he does and wears. ]

Right?