The smoke from the blunt doesn’t compare to the fire Lan Zhan breathes into Wei Ying’s mouth.
(Dragon/human LWJ and fox/human WWX are married and get high together.)
See, dragons are a thing of myth, of legend. So Wei Ying doesn’t really expect it one afternoon when he’s taking a detour walking back from school to avoid Wen Chao & his crew, ends up in a forest, and accidentally stumbles upon a dragon.