Meet the incredible Deleo twins – born 16 days apart! The remarkable sisters amazed medics after one was born prematurely at 23 weeks – and the other at 26.
The older sister is Alessia and her younger sibling is Lara.
Parents Linda and Nick Deleo, both 38, had no idea there would be any delay with the birth of their twins girls, who are now three years old.
But when they went to the Women and Children's Hospital in Adelaide, Australia, in February, 2010, they were told there would be more than two weeks between the births of their daughters.
Linda said: "My waters leaked and broke with Alessia first but they just stayed intact with Lara and the labour stopped.
"The doctors decided the main aim was to keep Lara in there as long as possible to help her grow.
"I stayed in hospital the entire time and got steroid injections to help the baby's lungs get stronger. The doctors did seem surprised it went on for so long and in the end I had a caesarean."
Alessia was born on February 2 and spent 15 weeks in hospital while Lara arrived on February 18 and spent 13 weeks in hospital - meaning the pair could go home together.
To cope with having two birthdays in such close proximity, they Deleo family holds a big party in between the two and the girls each have their own smaller celebration on the actual day of their birth.