[Keith does shake his head at the words but doesn't push beyond that, focused on discarding the armor to the floor once it's off, and a moment later, doing the same to his own, not without a few strained grunts in the process, one arm at a time so he doesn't stop touching Shiro in the process. Once done, he guides Shiro's hand back to rest properly there against him over the undersuit, leaning into it, and Keith sighs in something like relief as well. Nothing else matters but this right now.]
I'll take care of you. [He murmurs this, decidedly, a hand to Shiro's chest too, slowly touching him as his other one brushes down his back back, both working strong and deliberate, a reminder in every shift of his hands.] Shiro, this is your body. Just yours now - no one else'll ever take you, nothing... will ever leave you trapped and alone again. I won't let it.
[If there's desperation in his own voice, much as he tries to stay steady, well. He doesn't let it deter him.]