The brave youngster had the right side of her pelvis removed in 2011 after she was diagnosed with Ewing’s Sarcoma, a rare and deadly form of cancer.
Two years on Jen is now free from the disease and can walk again after months of painstaking physiotherapy.
And her missing joint has left her with a very special party trick.
Rather than hide away her quirky talent – Jen decided to share it with her friends, family and even schoolmates in a hilarious YouTube video.
Aimed at winning a talent contest held by talk show host Ellen Degeneres, Jen filmed herself showing off her trick to friends, family members and even schoolmates.
While her doctor barely flinches as she grabbed her leg and points it skywards – a room full of pals fall about in shock and disbelief at her physics-defying stunt.
Source: The Sun