It is not a safeword, but Burr knows Alexander well enough to treat it as such.

"Of course," he says, gently. Removes his finger, and ever so carefully turns them, until Hamilton is facing him and he can lift them both, stagger towards the bed and allow himself to fall, Hamilton on top, still knotted to him. Not much longer until he wont be able to lift him. Already his muscles ache, from the long repetitive motions.

He knows this is precious, that he is being offered something, delicate and breakable, and with the wrong move some part of Alex could seal off to him forever. He cradles him, as one cradles a child, gentle, rocking motions, one hand on Alexander's back as he pulls the spare blankets up from the foot of the bed, wraps them. His knot, starting to go down, yet they are still sealed firmly together. Not worth hurting him, to pull it out.

Begins petting over his head, down his neck, his back. Reaches to the table where they keep the salve, massages it into his hands and sleeps them beneath the blankets, rubbing slowly into his ass and thighs. "There," Burr whispers, "I have you. I've got you. You're so precious, so perfect. So good. Tell me what you need," peppering kisses over his face, eyelids.