Vintage optical illusion reveals if you have a dirty mind

Talk about, uh, room service.

A hotel’s vintage signage for an in-room safe is causing quite a ruckus in the online “optical illusion” community: The illustration of a man peacefully reading a book in a chair resembles something quite raunchy in the eyes of some viral brain-teaser enthusiasts.

For the sign that advertises an “in-room safe available,” the drawing of a man sporting glasses and a collared shirt is shown along with a photo of the keypad safe in addition to the message “inquire at front desk for details.”

However, many are seeing something beyond a suggested place to store the family jewels.

“I work in a hotel. We know exactly what we’re doing,” quipped one commenter on the original Imgur.com post, while another chimed in: “Do not disturb.”

[Warning: Spoilers below]

Still don’t see the raunchy reveal? Take a closer look — it might just appear if you have a dirty mind:

Well, many eagle-eyed social media watchdogs report seeing a drawing of a woman with a pony tail performing oral sex on a man.

Hmmm, perhaps that’s why the (seemingly) inadvertently raunchy image is captioned “enjoy peace of mind”? As one commenter said about the illusion — which first went viral in 2016, but bubbled to the digital surface again this week: “If you ‘inquire at the front desk’ do they put you in touch with an escort service?”

Another snarked: “It really sucks. Not to have an in room safe, that is.”

Meanwhile, this steamy optical illusion is one of many recents that have challenged sets of eyes throughout the world, leaving many to question if they’ve got a dirty mind.

Two dancing stick figures have been mistaken for a woman’s voluptuous anatomy on Reddit and a woman’s elbow was believed to be part of her breast in a side profile photo found on that same forum website.

A French black-and-white sketch of two dolphins has also been interpreted as a kinky couple getting down to business and what seemed to be someone’s widely spread rear end was actually just a shirtless, bald man kissing his infant child.