It turns out getting a million Likes on Facebook may be as simple as asking for them. At least, that's what two friends in Norway took away from the triumphant run of the photo of siblings asking for a million Likes so their dad would let them get a dog.

In the wake of that social media victory (the girls have since chosen their puppy), Petter Kverneng and Catherine Johansen, both 20, posted a sign on Facebook agreeing to have sex with each other if the image garnered a million Likes.

"It was meant as a joke for our group of friends," Kverneng told the Norwegian publication Verdalingen.no.

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The picture soon went viral, after it was posted to 4chan's /b/imageboard page, and at press time has about 1.2 million likes.

According to the Verdalingen.no interview, the two plan to follow through with their agreement.

Image courtesy of Facebook, Peter Kverneng