Family First, Right..?

This is a sensual story. It takes place on a lovely privately owned island, which Cam's family owns. He finds himself with a beautiful woman seducing him in secrecy, but the problem is the woman is Cam's brother's girlfriend. From groping under the table to quickies in the bathroom, they find themselves bound to each other's skin every chance they get. Do they ever see more than sex in each other or will they part ways after the trip?