He knows what she's doing, even if he isn't entirely conscious as to why, so he makes a Herculean effort to lift himself off the ground enough for her to pull his pants off him too. He grits his teeth against the pain of the leg, knowing that it's coming.

"He hit my head.." he says quietly, partly to explain what happened, partly because... that might be relevant? Right? It didn't break the skin, so there wouldn't be any blood to betray it, but the headache is one of the sources of pain he can actually single out.