People can't figure out if this woman's photo shows her with one or 2 legs

• On Friday, a woman named Marisol Villanueva shared a selfie on Twitter to show off her outfit.
• The selfie went viral, as people can't tell if the picture shows one leg or two.
• But it's an optical illusion, there's only one leg in the picture.
• The tan stripe on Villanueva's track pants blends in with the beige wall and floors in the background, making one leg appear like two.
• Villanueva told INSIDER that she's enjoying her newfound internet fame.

On Friday, Marisol Villanueva, an 18-year-old college student from Granada, Spain, shared a selfie on Twitter to show off her outfit, which featured clashing patterns.

But the picture went viral for a reason that had nothing to do with her slight fashion faux pas: The internet was torn over whether the picture showed one leg or two.

People weren't sure what to think.

Some Twitter users said they could see two legs.

"Is it just me or did anyone else think that was both of her legs at first,"@ErikPryal wrote.

One person even edited the photo to clearly show two separate legs.

Other people said they see just one leg from the side perspective.

And, of course, people made jokes.

Several people are comparing the situation to internet-stumping optical illusions of the past.

"This is more confusing than the white and gold/ black and blue dress that went viral in 2015 "@thiccafdolan said.

But on Saturday, Villanueva cleared up the confusion: Only one leg was visible in the picture.

The tan stripe on Villanueva's track pants blends in with the beige wall and floors in the background, making one leg appear like two.

The stripe really confused people.

Villanueva told INSIDER that she didn't expect the picture to go viral. She said she's used to sharing photos of her outfits on Twitter. "I was just doing that!" she said. "I didn't even notice the optical illusion at first."

For the most part, the college student sees this as a positive, funny experience. Villanueva said the only negative part is that people have been body-shaming her appearance.

"I haven't responded [to the body-shamers], I just want them to know that by making negative comments about someone else's body they're just making themselves look bad," she said. "I thought we were over that kind of stuff."

All things considered, Villanueva is enjoying the experience and learning to adjust to life as a meme.

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