Have you ever seen someone in a crowd or watched a YouTube video and thought, 'Gee, that person looks just like someone I know?' It happens all the time, and usually those doppelgangers are just a spooky coincidence. But for AnaÏs Bordier, the chance sighting and a little help from social media might lead to finding a twin sister she never knew she had. AnaÏs is a French fashion design student living in London whose friends noticed her resemblance to an actress in a (somewhat NSFW) YouTube video. It features Samantha Futerman, an American living in Los Angeles. AnaÏs was curious, so she Googled Samantha, eventually finding out they were both born on the same day, and both were adopted shortly after birth.

AnaÏs reached out to Samantha via Facebook, sending a message Samantha says changed everything.

"I received a message via twitter that would erratically change my life. It was a mention from a stranger, letting me know that a girl named AnaÏs had friended me on Facebook. At first glance, I saw only my own face staring back from 'her' profile picture. Yet, after just a few clicks and a personal message from AnaÏs, I knew I was about to embark on a journey that no one else had ventured before," she writes. "Through just a few brief-yet-super-effing-loaded Facebook induced interactions, I was positive that this girl was in fact my biological twin sister."

SEE ALSO: Woman Finds Birth Parents Through Viral Facebook Photo

They've launched a Kickstarter campaign to raise the funds to meet, get biologically tested and create a documentary about the process of finding out if they really are twins separated at birth.

Social media is what allowed this journey to unfold, says AnaÏs. Writing on their Kickstarter page she says, "Social media and I have had this weird relationship where I think I was better at hiding my personal information rather than sharing them with others. But at this particular moment, I could follow Sam through her life of the last and lost past years. I was already getting to know her without her knowing I was even here. I saw her trip to Korea, her baby pictures, got confirmation that we came from the same birth town, watched 'How it feels to be adopted' and I knew for sure."

The project has raised $26,115 so far of their $30,000 goal, with almost a month left in the campaign. Check out the video above to see their heart-warming story and a video of the two meeting and seeing each other's familiar faces.

We've seen people setting up searches for lost relatives using Facebook, but this is the first we've seen a Kickstarter campaign being used this way. Have you heard of other people "finding each other" using social media? Let us know in the comments.

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