The Twins Who Had Two Different Fathers

A woman in New Jersey found out that her twins were fathered by two different men during a paternity case. During the testimony, she admitted to sleeping with a man who was different from her partner a week after she thought she conceived the twins, the New York Times reports.
Segal says this is “supposedly rare, but my guess is it occurs more often that we think” since we only know about the cases that are discovered. (Hey, there are plenty of women who cheat on their partners and don’t ‘fess up.)
This can happen when a mom releases two different eggs at the same time, says Prince, and he cites estimates that say about two percent of twins have different fathers.