Whoa: A woman in northern Poland gave birth to twins -- a boy and a girl -- who were fathered by two different men: her husband and the man she was having an affair with. It's rare, but it can happen when a woman produces two eggs and has sex with more than one partner while she's ovulating.
Visit msnbc.com for breaking news, world news, and news about the economy
Want more weird health news? Find The Body Odd on Facebook.


I once had a good friend, an African American woman that had sex with her boyfriend on New Years Eve, and sex with a white guy on New years Day. we kidded her for months that she would have one of each. She was truly scared that she would have two noticeably different looking children. Luckily she had two beautiful AA babies. Whew. I think there could have been a problem if that didn't happen. lol