An Ohio woman had what she's calling the "best Mother's Day present ever."  Two of them, actually.  Sarah Thistlethwaite gave birth to a very rare set of twins late last week.  The little girls shared both a placenta and an amniotic sac. Thistlethwaite told NBC's "Today" show about a picture of the twins that has gone viral:

"As I was laying there, all I could hear was Dr. Wolf saying 'oh my gosh, they're holding hands, they're holding hands!'" Thistlewaite said.

Twins like these are known as "mono mono" and occur only 1/10,000 pregnancies.  Babies Jenna and Jillian will stay in Akron Children's Hospital for a few weeks before they head home.