I shouldn't love you, Keith thinks when he stands alone, watching the rocket climb into the sky on its way to Kerberos.

I shouldn't love you, Keith thinks when he stands beside Shiro in the observation room, staring at the way the green light plays over his features while they're alone here.

I shouldn't love you, Keith thinks when he walks away from Voltron with one last look back at Shiro, standing tall and proud in his paladin armor, just as it should be.

But I love you too much, Keith thinks with the blade of Shiro's arm mere inches from his throat, and this time, he says it out loud.