Summer of the Would-be Sister

Things are on track for Gina's 16th birthday: she has a new dress, a gorgeous cake, and a reservation at one of New York's hottest restaurants. She even gets a birthday kiss from her secret crush. The only holes in Gina's day are her friends being away for the summer, and her father. The mysterious stranger she has never met.What Gina doesn't expect is to come home from work to find her apartment invaded by Australians. Will these unexpected guests ruin her life as well as her birthday?