Where would you hide dirty pictures on your iPhone?

So that probably sounds kinda bad. But I have some guy friends who were talking about them having secret places for their dirty pictures on their iPhone's and it got me thinking, where would you hide them? I have an iPhone also, and I have some things I would like to be kept secret, so people looking through my phone wouldn't find them. Please don't go though the whole "you're too young for that kind of thing," or any other long speech.

App called safety P+V

You're too young for that kind of thing.

Lots of apps. Photovault is one. Just install, move your photos to a folder, then set a 4 digit code. Only you can get into it. Unless you give someone else the code.

-On Someone ELSE's.

Theirs a app called my disk and it has a code there are other apps a like it if you don't like that one
Or email them to urself and keep it in a folder on your email