For people who are puzzled, Inseo is so confused because he is already having s** with yi hyeok because he likes to do it WITH HIM and not any other person. So defining it would not make much of a difference for Inseo.
For people who are puzzled, Inseo is so confused because he is already having s** with yi hyeok because he likes to do it WITH HIM and not any other person. So defining it would not make much of a difference for Inseo.