Nanjo was horny since chapter 39, he unbuttoned his shirt as soon as he got to Mok's apartment and stared down at him when he was shirtless. And we know from Sunwha he can't get off unless Mok is in the room so he must've been pent up after all the time they spent apart. Also he wanted to expose the hypocrisy in Mok's words when he said he didn't want anything from him, when he almost gave him road head the day before. Was it quickly? Yes, I agree, but I have accepted these two are just freaky and they match each other's freak

I need some explanations and think that the smut is happening too quickly. what is the author planning????