I was a Teenage ALIEN
by Jane Greenhill
Oas is sent from her home planet of Zorca-twenty-three to rescue her brother from the clutches of the worst humanoid known in the solar system--a teenage girl.
Oas experiences first hand life as a teenage girl, falls in love, saves a town from an E.Coli outbreak and meets Johnny Depp.
But when she samples food her handler has warned her to avoid, life on Earth takes a drastic turn for the worse.