
SPOILER!!!!
Yea, coz Xie Lian's spiritual prowess is based on him being celibate and devoid of worldly pleasures. So like if he has sex, his spiritual base will vanish and he has to start cultivation from the start.
But they do have sex tho
It's vaguely mentioned in the extras. So, in one of them, Xie Lian due to having encountered a certain kind of demon when hunting temporarily loses his memory to before his ascension.
He wakes up being "violated" and without spiritual energy. And then he like proceeds to wander around the town and ends up meeting Hua Cheng. I won't spoil how the interaction goes.
Oh then there's also this incident with the Puji Shrine, where that human cultivator with the 'evil-seeing' eye tells that Xie Lian's evil essence is now mainly concentrated in his *ahem* abdomen region.
And it's also said somewhere in the novel I think, that Xie Lian giving Hua Cheng writing lessons becomes the base to many of their 'activities' later on.
But that's like literally all the mentions of sex
no smut scenes in the novel too?:) i want it sooo bad