That's where they were living separate lives until an incredible twist of fate brought them together. CBS News Correspondent Jim Acosta has their story.
Adriana Scott has quite a story to tell. Reporters have been hot on the college student's heels, ever since she found herself on the front page of the New York Times.
Here's the headline: "At Twenty Years Old... She Discovered She Has A Twin Sister."
Born in Mexico, then separated and adopted by two different sets of parents, the young women never knew the other existed until one day recently a mutual acquaintance did a double take on campus, asked some questions and put two and two together.
Now reunited, Adriana Scott and Tamara Rabi have become fast friends.
"I feel like I've known her my whole life," says Tamara.
"It's just overwhelming, the reaction of people," Adriana adds.
They, too, were overwhelmed by their first encounter.
"It was kind of shocking," Tamara says noting, There were "no tears and no hugging, because we had never missed each other because we didn't know about each other."
Even for the families and the friends, it's going to take some getting used to.
"I couldn't believe it," says Adriana's mother, Diane Scott. "They were the same. The only difference was the hair color, and you know that had nothing to do with Mother Nature."
Christie Lothrop, Tamara's friend, says, "It's like one of those corny movies that you see on TV and you're like, 'Oh that never happens.' Two sisters separated at birth? And they just happened to find each other? No. Not likely."
Adriana and Tamara are amazed they hadn't met before. Both grew up in the New York area with a love for dancing. They attend different colleges only a few miles apart on Long Island. But they have an idea as to why the meeting happened now.
Tamara and Adriana have both lost their adopted fathers to cancer.
"I think my father is behind all of this," Tamara says. "I was in Israel. We went to bury him in Israel and the day after I came back, I found out about her."
"Maybe they met ,wherever they are. Her father told my father and gave this to us," Tamara continues.
Now they have each other and so much to talk about.
"People say 'Oh, you stand alike. We don't notice," says Adriana.
While they have plenty in common, they have their differences. Tamara was raised Jewish in Manhattan. Adriana is a Catholic from Long Island. But they're not bitter about the time they've lost.
"I can't be angry at the lawyer or at the system because I've had a good life and I had great parents. I can't really be mad at them for it because I've had a good life and she has, too," Tamara says.
As they dance, Adriana and Tamara may be just taking their first steps as sisters, but they look like they haven't missed a beat.