Them Five (Janoskians)

When Lucy Chalmers a 17 year old teenager, but a 5 year old at heart moves from New York to Australia with her best friend Leonie, she is 18 (well is forced by her mum that hates her) she was born in Australia, she moves in with her 26 year old sister that has 2 kids! She has to go to school and may even be romance! He sister is a child when she wants to be, but has responsibilities! Will Lucy fit in? Will Leonie fit in? Will they both like it? Who will they meet? Will love get in the way of their friendship that has been going from 3 years old?