But then Green, an Indians season-ticket holder, invited Brosnan to watch their teams rival off during the World Series.

"Laurie had the ticket and invited me," Brosnan, 40, said. "We've tried to get together in the past but the timing didn't work out. In the frenzy and excitement of both teams making the World Series, this was the perfect opportunity."

The sisters said they didn't mind sitting next to a fan of the opposing team because they've wanted to meet each other for so long.

"The fact both our teams are in the playoffs is so exciting," Green said. "I'll be happy if they win -- don’t tell my friends -- and she’ll be happy if we win, I'm sure."

Read more at USA Today.