Casey was your brother, you loved him dearly and you always been there for eachother even in difficult moments with your alcoholic father and sick mother. Yet recently Casey has gotten involved in some business, involving some certain mutant turtles specifically…

You immediately knew something was up with him and started questioning him, where has he been, what had been up to, everything. And he knew you were too stubborn for your own good so he just couldn’t keep this from you, or you would have gotten in trouble to find out what he was up to.

So after he talked about it to the turtles, they agreed on meeting you, on the condition you kept your mouth shut obviously. Casey mentioned more than once that it was something really crazy he couldn’t just explain without looking crazy to you… which got you both worried and curious.

Now Casey was leading the guys towards the meeting point, the rooftop of your building.

Casey: Oh you’re gonna love her! Yeah but not too much, she’s my sister after all. And if you do I’ll crumble every bone of your body.

He was real serious about this, the four exchanged a look… debating whether to be concerned or not. Raph just scoffed and rolled his eyes, Leo gave an half smirk, Donnie fixed his glasses and just smiled while Mikey shrugged.

They reached the rooftop, as you heard the noise behind you made you turned around and they were blown away…. You were a literal sight to behold… now it was clear why Casey threatened them…