I don't want to hear this from a person with a haikyuu icon/
Anyways, here is what they/and I mean (probs them idk)
This is so far not incest but, judging by the yaoi tag and how this will always fucking roll, it will turn into incest. The older step brother even suggests to call him little brother (I believe) and if this is how it plays out and they start having sexual interactions it will be considered incest, they are not related by blood but if they see each other as siblings, or not doesn't matter they are in fact siblings, it's still incest. I don't know how hard it is for you to understand but this is my explanation on why I know this is incest
Incest = relationship with people of the same blood
If they lived together since they were a child I even understood why you are against it... But here it doesn't make any sense to use that term... Literally they are two adults who were sex friends and now his parents remarried. BITCH WHERE THE INCEST?
I give up too homie, lets walk away
Atleast we know what is wrong and what is right
You guys have received so many explanations and its obvious whose right, calling us 13 and vanilla is just a weak comeback, instead you should actually realize who is right, and thats us. Do your research, this is incest.
Smh not step bros.. welp this is gonna be incest