I caught my little sister masturbating

I'm 13 and she's 11. I was playing Mechwarrior 5 on my PC in my room. I have 2 PCs set up in my room, and I use the other PC when my little sister needs to use my PC. Sometimes though, I'll still use my main PC to play video games while she's on my alt PC, but she's not allowed to play online while I'm on main. <br><br>So I was playing my PC and she was doing her homework on my alt PC, or at least that's what she said she was doing. She then gets up and goes to the bathroom, and while she's in there, I swap the keyboards and mice. She comes back and sits at my PC and starts playing Roblox with my keyboard and mouse. I then go to my alt PC, open the on-screen keyboard, and start pressing random keys.<br><br>She thought my PC was possessed and that the devil was inside it, and then I came behind her and scared the shit out of her and she cried and peed herself. I told her that she shouldn't be naughty and that I told her she couldn't play Roblox on my PC. <br><br>I still consider this a win.