This Girl Can Do Crazy Tricks With Her Hand That Make Me Want To Barf
GROSS. Fingers are NOT supposed to do that. Seems like something that might turn into some nasty arthritis down the road in life. Hope she drinks a lot of milk. Calcium and strong bones and such.
Apparently this is from something called Ehler-Danlos Syndrome. As freaky as it is, she has nothing on our own Cass Anderson: