as a huge yaoi lover i'm not sure if i want to see them having sex, feel like this might ruin the magical side of this cute relationship. i think it should stay as bl, not as a yaoi
I think I know what you mean, but it really depends on how they will depict it. It can be not explicit and more on sensual side, like a short scene, more about feelings and not for the smut. I actually hope that if we even get there, it will be something tender like this. Like, not just smut for the sake of smut, how it often is.
i really love this story but i think they shouldn't have been like father and son from the begining, because their relationship's evolution from a father son to lovers will be kinda uneasy. what i'm talking about is not age, it is their perspective to each other. for example right now taehyuk sees hyo un as his son, but later he will see him as his lover. it is irritaring.
just please tell him. he deserves to know, he won't risk your mission but will make things much more easier for both of you