In this game you play a simple spin the bottle game against two girls. Player which was pointed by bottle must take something off. The last one who remain clothes on win the game and can receive "reward". Win game more than once to unlock new rewards (more will come in future updates)
In order for you to be able to install this game, you need to enable (allow) installation of applications from unknown sources (Unknown sources) in the phone settings. Usually this item is in the Security section