Lan Wangji had never had call to perform the spell of silent communication before he and Wei Wuxian joined together to fight Xuanwu. He figured it was temporary. Spoiler alert: it wasn't. Or: the AU in which Lan Wangji and Wei Wuxian psychically bond in the cave, Wei Wuxian overhears Lan Wangji thinking about the fact that he actually likes him, and after several minutes of confusion, is fully on board with this.

Eight years after the death of the only person Lan Wangji has ever wanted, his dragon Bichen inexplicably rises for her first mating flight.

Lan Wangji leaned forward to lick the sweat off of Wei Wuxian’s neck. “I am fucking you,” he said as Wei Wuxian started to whine. He took his hand away, blinking his way back into the jingshi. Lan Wangji was laying there as unruffled as ever. “You really like the begging, huh?” Wei Wuxian said weakly. Lan Wangji’s smile was so warm, his eyes so soft. He said, “Wei Ying’s voice is pleasing to me.” --- Wei Wuxian can read Lan Wangji's mind. He's surprised by what he finds there.

The resentful energy occupying Wei Wuxian's body like an enemy army is very interested in giving him Lan Wangji, tied up with a bow. Wei Wuxian is hoping that Lan Wangji (who is far too noble and very keen to save Wei Wuxian's misguided soul) doesn't find out about any aspect of that.

“So,” Lan Xichen said after a while. “We’ve been sharing dreams.” “It certainly appears that way,” Nie Mingjue agreed. “How do we make it stop?” Jin Guangyao wanted to know. (in which the sworn brotherhood ceremony is accompanied by an unexpected mental bond)

Wei Wuxian almost does not catch the name of the song. In which the aftermath of the cave battle involves just enough communication to make a difference.