Under the Cover of Darkness (слэш)

He shakes his head, snapping himself out of this lust-fueled haze. He’s about to push the door open and say something to put an end to his disciple’s shamelessness, when he freezes at the barely audible word that leaves Luo Binghe's lips in between moans.
“Shizun-”
It hits Shen Qingqiu like a ton of bricks. Because no, that can’t be right. He heard wrong. There is absolutely no way his disciple is moaning for him as he masturbates in the middle of the night. It’s impossible.
He looks to the bed where Luo Binghe is still fucking himself open, and his heart skips a beat because that’s his fan that Luo Binghe is defiling. There are so many other objects Luo Binghe could use! Why did he choose Shen Qingqiu’s fan….unless?
Shen Qingqiu’s thoughts race as he tries to process the overload of information.
Could Luo Binghe really be fucking himself to fantasies about Shen Qingqiu?