Start the first round - the foreplay round - by choosing one of the naughty cards (e.g., "spin the bottle", "roll the naughty dice", etc.). Plan your strategy and collect Passion Cards in this round, which you will use later in the Sex Round to intensify your pleasure (in sex activities, positions, etc.).
If that's not enough for you, turn over the Plot Twist Cards and find yourself playing some very interesting scenarios.