Quick guide for hiding stuff from your parents.
Physical Objects
If you have a drug stash in your room that you never want found or you accidentally had a stuff and didn't feel like cleaning it up, then put whatever object you don't want found into a box then wrap it up like it was a present. Your parents might be confused as to why you have Christmas presents wrapped eleven months before the occasion, however chances are they're not going to do anything about it. Obviously every time you wanna get that flesh light out you're gonna have to unwrap the 'present' then apply wrapping paper again afterwards, you could always just get a gift/present box though.
Computer Stuff
Your parents already know you watch research, however if you're into furry stuff and don't want it found then you could just delete your internet history. If you wanna go an extra mile and impress them, you could always save up and get a cheap notebook for research and keep it hidden.