This is Russia and Katrina's story. Russia and Katrina are good friends with a secret. Something that they don't want their circle of friends to know. Following a night of alcohol and a dangerous game, the ladies embark on a clandestine rendezvous that could have life-changing consequences not only for them but their friends; Brina and Simone, the McKenzie sisters. With Simone travelling the world with her award-winning documentary and Brina starting her own business, everyone's collective secrets start to unravel for all to see. And EVERYTHING is going to change! X & Y is Mr Oh's final book in his 'letter series' following Beware Of The D and The Power Of U and is an engagingly sexy story that will have you hooked from beginning to end!