Now sass--as big a pain as it can be--is something that Vincent understands. To him, it's a sign of normalcy. And Robin is almost acting normal too, laughing like a human and stooping to being smushed into a couch. Because of all of this, Phalanx may even catch Vincent actually starting to smile a little as he walks away from the couch, presumably to head to his room and sleep off his weird, weird night.

Robin sighs happily, settling back a little more, and embracing his newly-tucked-in situation.