Uhh advice??

So basically my 10 yr old sister got caught watching porn. That bitch hasn't even reached puberty and is watching hardcore porn... our maid caught her and informed it to my parents. Well i watch that too but I started watching porn in 9th grade and I'm 18 so this is normal but this bitch isn't even in 5th grade and has started masterbating to porn wtf
What will you guys do in such a situation cause our home atmosphere is a mess and I can't even get out for fresh air cause its FUCKING LOCKDOWN