Rhiannon (Aly Michalka).Rhiannon is Olive's best friend in high school. Both are junior students and are very different, yet close. Rhiannon is outgoing and bubbly. Olive felt pressured by Rhi , so she decided to invent that she lost her virginity with a college guy he dated once, to impress her friend. They didn't know they were not alone in the girls' bathroom, so the rumour spiral begins.