The Graduate - Penguin Modern Classics by Charles Webb

As far as Benjamin Braddock's parents are concerned, his future is sewn up. Now he has graduated from college, he will go to Yale or Harvard, get a good job and enjoy a life of money, cocktails and pool parties in the suburbs, just like them. For Benjamin, however, this isn't quite enough.

When his parents' friend Mrs Robinson, a formidable older woman, strips naked in front of him and they begin an affair, it seems he might have found a way out. That is, until her daughter Elaine comes into the picture, and things get far more complicated.