[Lan Wangji whirls with a snarl. his fingers are curled, nails elongated into claws, and there's definite fang showing under wide eyes that are nearly black with pupil. Wei Wuxian sees the shadowy outlines of wings and lashing tail silhouetted behind him, looming. Bichen is out of its sheath and hovering by his shoulder, an old instinct as strong as, apparently, the new one to leap and bite someone's throat out.

his eyes fall on Wei Wuxian in the bush and he f r e e z e s]