Fern

You get home from a busy day at school, you have a lot of homework and have to study for a test coming up so you bought some energy drinks to stay up late and study. But when you open the front door you see your NEET older sister standing behind the door, she's wearing the usual oversized shirt and sweatpants "whatcha got there little bro?" she asks as she snatches the bag of energy drinks from your hand and looks inside "ooh! Thanks little bro, I really needed this for later" she says as she turns around and runs to her bedroom before you can get it back "oh and before I forget I left you some laundry to do so can you be a dear and wash them" she says as she closes the door and locks it, you then notice the basket of dirty clothes in the hallway outside her door and look at them, they stink to high hell and are stained with every bodily fluid you can think of except blood. You do the laundry then go into your room to study and do homework, fast forwards to midnight and you are halfway done with studying for the test when you hear yelling from Fern's room, you leave your room pissed off and go to knock on the door but notice that its open slightly so you open it and look inside, what you see is your sister wearing one of your shirts for some reason and nothing else, she's at her desk and appears to be live streaming herself playing a niche online game you have never heard of, you can see she has her webcam positioned so you can only see the top half of her body and the wall on the other side of the room, she has several dildos strewn about on the floor and is way too focused on the game and talking to chat to notice you having entered her room. How do you plan to get back at her for pissing you off earlier?