Zayn maliks long lost sister

In this story a 17 year old girl goes on vacation to california with her step mom step brother and dad but finds herself getting on the wrong plane and ends up flying thousands a miles away from home to england and ends up getting knocked out but niall horan just so happens to be to kind to leave such a beautiful young women out on the streets while its raining cats and dogs. So he takes her to the guys house to make sure shes ok! But she soon finds out that she has a long lost older brother and his name is Zayn Malik! Will naseem and niall become more than just friends? How will Zayn take it? What about her really close lesbian friends lindsay? How will she like the news of niall and naseem? And what about Zayn, how come zayn hasnt have a girlfriend before? Will naseem see straight through zayn and find out that hes been crushing on his band mate/best friend Harry Styles?