Mount Everfall scintillate bright like a diamond

Cas followed her gaze to the denmouth and hesitated only a moment before slipping forward to inspect it. the entrance was low; he had to duck his head before entering, but the inside of the cave was spacious, cool with the scent of new mosses growing along the stone walls. emerging, Cas shook out his ruff and grinned at the pale girl. "great find, babe," he crooned, then his eyes widened. "uh, Laika," came his quick amending, and then he stopped. 

he could call her babe. boo. bae. whatever. "babe," he added again, this time chuckling at himself as he moved toward Laika and nuzzled into the pearly fur of her hackles.