could be this one, or not, don't remember their first sex scene
https://www.mangago.me/read-manga/highest_order/
B.a.n.a.n.a s.c.a.n.d.a.l (?
Btw this is a very vague description and a lot of manhwas have this dynamic so im not sure
THE BEST BL EVER after JINXZ
I think you're right. BananaScandal fits the description lmao (づ￣ ³￣)づ
I check but sadly it's not it
Oh wait I think I can add more, the blowjob happened in the hotel and the relationship of the brother and the friend started before the original manhwa ends
Idk if it's in a hotel or dorm
What is that yaoi manwha that the brother of the main bottom character is part of a another manhwa (i think or it was the same manhwa but side story) which focus on the brother (the top) and his partner is the friend of the main bottom character in the main manhwa, More like they were the secondary couple in the main manhwa and they got another manhwa (i dont know if its called the same) which they are the main focus, and i remember that their first sex scene is where the brother ask the mc friend to blow him and it was a really hot scene heheheh