Optical delusions are when your eye sees one thing in an image because it's become accustomed to that kind of image in that context. In the cases of the following images, if you see the "dirty images" then you, unfortunately, have a dirty mind. If you see what's really there, then you're a healthy, good-hearted, well-meaning, functioning member of society.
So here's a list of things that look dirty, but aren't. All of these pictures (and one video) seem dirty at first, but when you look closer it turns out that not only would those be horrible pictures in these contexts sometimes, but that you've brought any dirtiness into the pictures yourself.
Get ready to be disgusted with yourself on this list of optical delusions: dirty picture edition.
http://www.ranker.com/list/20-pictures-that-prove-you-have-a-dirty-mind/greg, internet, anything, memes, pop culture, other,
She Rules the Cheer Squad With an Iron...
This Works Best From Far Away
...
Use the zoom on your browser by clicking Ctrl and the - sign at the same time (or if you're on a Mac, Command and -). Use the + button and Ctrl (or Command) to get your browser back to normal.
They Probably Should Have Waited for Her to Take This One
A Catholic Priest on Casual Friday
I
These Kids Know How to Party
Shane Nunlist Does the Thinking For Us
A Really Intimate Massage Place
Sign... me... up?
Because Why Would They Let *Her* Sit Like That?
Hypothetical Photographer: "Alright, everyone line up by height on the sides and will the hottest one of you please spread your legs in the middle there...aaaaand... perfect. Great. This looks great, guys."
Underdressed Woman is Underdressed
Basically the same answer as the last picture, only with a much curvier arm.
Maybe She Should Wear Longer Shorts
... Or get a different color bike seat (unless you're into that kind of thing).