Xolotl interrupted the almost tender moment through sheer physical disruption, appearing suddenly as if out of nowhere and pushing himself in front of his twin, facing the new-old person, realising who it was before he even realised who it was and trying to defend his brother should the touch be unwanted; Xolotl couldn't imagine it would be, not after their last rendezvous had gone wrong.
He'd woken to find his brother gone, and he'd had a good fifteen minutes of almost panic attack where he'd nearly torn the house apart looking for some sign of where his brother had gone. Nearly, only not because all he'd done since leaving the Underworld was sleep, sleep and sleep some more. He looked terrible, a little more alive than he had while in that place but still more corpse than the average human boy, standing in front of Tezcatlipoca trembling with the exertion of having run from the house to the museum... well, mostly run.
Even if the other Aztec (and wasn't that a strange thought) had been threatening his brother he would have been about as much use as a paper bag, but he would try anyway, would try until it killed him if necessary. "Quetz, are you okay?" he asked over his shoulder, not looking away from their old 'friend'.