
I dont think he ever really wanted to do it with his brother i think it was just set up for us to think that and for the bottom (forgot his name) to be confused with his fealings soon realizing it was only a brotherly love he felt rather than a lets fuck, he only realized this after meating the top (and doing it with him) and talking to his brother, because none of this was ever realy adressd in the story this is just my assumption, though i really dont think he ever wanted to do it with his brother (at first i thought the same thing to untill i kept reading)

It was not after sex, it was while sleeping. Probably he loved his brother a lot because he was kidnapped while in school and his brother saved him. Also he was raised without a father. Many times siblings act like they really love their brother/sister and get jealous of other people. But they do not want to have sex with them, they are just clingy
Nawl cus i was all up for this and was on my toes until i realized he wanted to bang his bro like that is such an unnecessary plot point why are the yaoi gods so creul to me