I mean it’s frustrating to know that the “master” never told him what a safe word is. It gives me a feeling that Yeonsu never got informed about that kind of play and that the “master” is taking advantage of someone that is new to it :(
I really hope Yeonsu will get helped quickly and that the black haired will inform him and tell him that what is happening to him rn isn’t alright at all..
I’m happy that his brother wants to keep him safe but still supports him (⊃。•‿•。)⊃