Responses
Nanjo was the one who put Mokyeon's dick back inside while he was sleeping, when Mokyeon was saying that he didn't know how it happened because he implied he pulled out, Nanjo interrupted him, changed the subject and asked if he's not going to do it. Let's face it they're both problematic and freaky.

Never thought he’d be so close to him, then proceeds to rape him
Never in my life would I thought I’d be skipping their sex scenes, what a waste