Responses
as someone with step siblings I got in my teenage years, they're not my siblings at all. yes we lived together, but we didn't grow up together as siblings at all. our parents just happen to be together so we were forced to live together. it would've been different if they actually were small children when they became siblings. but they weren't

Idk man, the age gap is f*cking disgusting and they are also step sibling. Even if they are not related by blood, they grow up knowing each other as siblings. Ughh ヽ(`Д´)ノ