The first story was cute, Kuro and Ouki both looked so good together but I can't with the second one.
I personally don't like cousin x cousin
Even though he can't give me a black card, I still want a brother who will spoil me like joonyoung.
...... But the Black Card though!!! (ㆁωㆁ)
I only know HTML but this seems to be an interesting juicy BL story Tsk
And Thanks for the update