
I read that part in novel but the translation wasn't best, it seem like jooyeon manage to arrive before they get inside him, so I think he kinda stop the second grape but he will uke to sit on suhyuk dick after he knock suhyuk out, I still haven't read the better translation of this part so the details not clear to me

There's a alternative story after excluding the beastiality. They goes to collage and did it there( I'm currently reading this part but I held up for some mental sanity myself after such long read ) playing with toys and stuff but idk later if Yeon did something extreme other than sex. But still this is after the 2nd gangrape if I'm not wrong.
I read the novel (the revision version) and man even that version made my stomach curl so I hope they change the gangrape part I deadass had to skip it I couldn't stomach it