Big Girl is a novel by Danielle Steel, published by Delacorte Press on February 23, 2010.

[1] Big Girl starts out with a couple, Jim and Christine, who marry at an early age.

She is born to a narcissistic father who is obsessed with looks and money, and a food- and fitness-obsessed housewife who plays bridge, and who seems to exist to agree with her husband.

As she grows older, Victoria is referred to as a "genetic throwback" to Jim's great-grandmother, known for her overweight, matronly figure, fair looks and "large nose", rather than resembling her dark-haired, dark-eyed parents.

Even though Gracie receives constant favouritism, praise, and adoration, Victoria shows no jealousy and is obsessed with doing everything for her sister from the moment she is born.