Cassandra Madison and Julia Tinetti.Photo: Courtesy of Cassandra Madison and Julia Tinetti

Cassandra Madison and Julia Tinetti

A pair of coworkers whose many similarities helped them form a fast friendship were surprised to learn recently that their “twin” nicknames for one another were quite accurate, considering they’re actually biological sisters.

Julia Tinetti, 31, and Cassandra Madison, 32, first met in 2013 as coworkers at the Russian Lady Bar in New Haven, Connecticut, Madison explained onFacebook.

For more on Julia and Cassandra’s story, listen below to the episode of PEOPLE Every Day!

They had plenty in common, including matching Dominican Republic flag tattoos as a tribute to the country they’d each been adopted from, and soon struck up a close friendship.

“We become friends, start wearing matching clothes, having a blast together and telling everyone, ‘We’re sisters,'” Madison wrote.

A resemblance between the two inspired them to compare adoption papers, but the documents didn’t match up, according toGood Morning America.

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Still, the women remained convinced they had some sort of connection, and kept in touch when Madison moved to Virginia in 2015, they toldGMA.

A DNA test that Madison encouraged Tinetti to take eventually confirmed the news: they were, in fact, sisters.

“WE ARE SISTERS!” she wrote. “Same mom, same dad ! Just two girls who happen to work together find out they’re sisters. I love you twin!”

According toGMA, the women believe that Tinetti’s adoption papers were mixed up with those of her childhood friend Molly Sapadin, which would explain why Tinetti and Madison’s papers did not match up when they first checked.

Madison, meanwhile, said it’s been a relief to finally reconnect with her long-lost family.

“For me, it’s always been, ‘I’m going to find these people if it’s the last thing I do,'” she said. “I was going to die trying.”

source: people.com