What's better than two perfect blonde sixteen year olds with blue green eyes? If Sweet Valley High is to be believed the answer is "three of them". Yes, the twins' identical cousin Kelly has come to town for two whole months and they're only delighted. But Kelly has some serious (and we mean serious) daddy issues. Not only does she idolise her cheating, selfish father, but she's now besotted with cheating, selfish Kirk! Luckily there's the greatest fancy dress party in Sweet Valley history to lighten the mood. 
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