So? It's still incest. Thanks.
Incest is with someone you share your blood so no it isn't （￣へ￣）
I was wondering about this so I decided to look it up, not to be mean but you got me thinking. No you are wrong, the definition says that incest is sexual intercourse between two classes/labeled as being to closely related to marry each other. Step siblings do not fall under this category, half sibling do. Therefore this is not incest. If you find that creepy then just say it's creepy but nope, not incest.
I hate when ppl say incest like they blood related. It doesn’t matter if they grew up together or just met. At the end of the day they not blood related at all