Eve and Hannah are conjoined twin sisters who join at the hips, but not in the way you'd think of. Their parents were worried that, without legs, they'd be stuck in a wheelchair for their whole life. But a bit after their fourth birthday, they had enough strenght and enough synchronization to "walk" on their own.
-"Look at what we can do, Dad !"

Excitable, eager to explore, they trained themselves about walking around this way, often changing side when one was a bit too tired. Soon they could spend a whole day standing and walking like any normal kid.