Khloé Kardashian was caught playing her sister Kim's highly-addictive iPhone game, Kim Kardashian: Hollywood, while leaving a party in London on Saturday. The two sisters were in town to attend the Hairfinity UK launch at Il Bottaccio, where Kim was the guest of honor. However, while a glamorous event might seem exciting to some people, that couldn't stop Khloé from checking in on her game and flashing her phone while the pair left the event. Hey, when you finally have enough energy points to complete that photo shoot at Metropolitan Magazine, you can't just ignore it, can you?