Guest and Lainey have been best friends since they were seven. Guest is always at Lainey's house because she hates being at her own house. She has always had a crush on Lainey's older brother, Ryan. Ryan loves to pick on Guest but when anyone else messes with her he fights them. Ryan secretly had a crush on Guest

Today is Guest sixteenth birthday. They are having a party at Lainey's house. Guest doesn't have a lot of friends other than Lainey but Lainey is friends with a lot of people and she invites all of them. One of the people who shows up is Emma. Emma hates Guest and has a huge crush on Ryan.

Emma thinks that Guest is fat because she always wears baggy clothes. Guest is actually not fat, she is skinny. Emma decides that during the party she is gonna pull up Guest shirt to show everyone how "fat" she is