At first glance it looks like just another sweet selfie tweeted by a young in-love couple. It's not.

Something is happening in the background that defies logic and it's terrifying people on the internet.

Read more:
Is this the world's creepiest selfie?

There's a clue in the caption of the photograph - posted by the boyfriend - that most users initially missed the significance of.

Photo / Twitter
Photo / Twitter

It reads: "I love my girlfriend even if she's a gemini".

While the Twitterverse was trying to figure it out, the photograph went viral, garnering more than 80,000 "likes" and being shared by close to 40,000 people in less than 48 hours.

If you haven't clicked yet, the fuss is about the fact that the girl is facing the wrong way in the mirror, hence the reference to the two-faced zodiac sign Gemini.

It is, of course, just a very good Photoshop but that didn't stop accusations of "witchcraft" from echoing around Twitterverse and the generation of countless memes.

Here is some of the hilarious reaction: