Dumplin' by Julie Murphy
Sixteen-year-old Willowdean (Will) wants to prove to everyone in her small Texas town that she is more than just a fat girl, so, while grappling with her feelings for a co-worker who is clearly attracted to her, Will and some other misfits prepare to compete in the beauty pageant her mother runs.
Review from School Library Journal:
Sixteen-year-old Dolly Parton-loving Willowdean doesn't usually struggle with her identity and self-confidence as a fat girl in a her small Texas town, where her mother leads the local pageant scene, until hot former jock Bo kisses her. In this novel, Murphy takes her time letting Willowdean explore her feelings about a variety of situations relating to friendship, jealousy, sexual attraction, drag queens, her obese aunt's death, her relationship with her mother, and her own self-worth. Murphy celebrates small-town Texas with her strong sense of community and culture, in part by creating very realistic and deep characters to populate Willowdean's world, having them frequent places like truckbeds and fast-food joints, and giving them pure Texan dialogue: "Oh God, roll down the mother flippin' windows!" Unlike the similarly smart, funny, and large heroines of Robin Brande's Fat Cat (Knopf, 2009) or Suzanne Supplee's Artichoke's Heart (Dutton, 2008), Willowdean doesn't have to lose the weight to get the boy and her confidence, but instead remains a strong and realistic overweight girl to whom many readers will aspire: "I'm not doing this to be some kind of Joan of Fat Girls, or whatever. I'm doing this…for me."