Burn calories the fun way with lots of sex! This calorie counter for couples introduces some fantastic ideas for fun in the bedroom, telling you exactly how many calories you're burning with each position.

The spinning wheel conjures up exciting positions for you and your lover to try in the bedroom and tells you exactly how many calories you're burning for each one. For example, sex on the staircase burns 894 calories for men, and 639 for women - not to mention that it's more fun than the treadmill!