Okay bro. Why is he sleeping with his sister? And why is his sister texting him like that?

they're not related.
Eren is a Yeager (ofc)
Mikasa is an Akermann (ofc)
GET OUT BRO!!! THESE TWO DO FALL IN LOVE!!!
also did I mention that Eren never treated her like a sister, she was just taken in by Erens mom

I am aware that they aren't related, but it has been close to five years since I have watched it, and I didn't even finish season 1.

crazy