A 39-year-old woman in Brazil just tracked down her birth mother, and when she did she found out she also had a brother, who'd been given away for adoption too. The big problem is, they were actually married! The met 10 years ago, they got married seven years ago, and have a six-year-old son together. They had no idea they were brother and sister. They say they plan on staying together.

Apparently these coincidences are actually more likely than you'd think . It's called genetic sexual attraction where people who are closely related are drawn to each other if they meet for the first time as adults.