Two pairs of identical twins had babies who are cousins and siblings
Identical twin sisters give birth on same day, in same hospital - ABC News
Mom has twins with different dads after sex with 2 men in 1 day
Twin sisters give birth on same day with the same doctor (plus one had twins!) - Good Morning America
Sisters give birth to girls on the same day
Identical twin sisters give birth on same day, in same hospital - ABC News
Rare twins released from Akron Children's Hospital
Twin sisters give birth to sons on same day in same hospital - Good Morning America
Mom Gives Birth to 'Rare Simultaneous' Twin Son and Daughter—Born at Exactly the Same Time