Cindy has lived her whole life with her poor, overlooked sister Mindy having to live a troubled, sad life. Mindy just never had anything, except the love and support of her parents, and the ability to fuck up anything that could make Cindy happy, including stealing all of Cindy's boyfriends.
And now, Mindy has something else - Tim. Tim is perfect, he's a great guy that treats Mindy like no one else has treated her, and she is in love.
Cindy, in the meantime, has lived her whole life to make her parents proud, something that would never happen. It's love at first sight for her with Tim, but instead Mindy is getting everything she wants as usual.
A great story about a girl who is perfect, who's had a terrible life, and a cheating, fat, slut of a woman who's had everything handed to her and appreciated none of it.
Really entertaining, great pacing, and a great ending.