The Sun reports on a new iPhone app:
A woman desperate to get her lazy boyfriend to exercise has invented an iPhone app that measures how many calories you burn off having sex.
The 59p download, called the Bedometer, analyses the time and intensity of each romp.Chuffed Livvy Thompson, 25, said: "The results have been amazing. My boyfriend can't get enough of it."
The gizmo is put on the bed and measures raunchy activity using the iPhone or iPod Touch's motion sensor before adding up the calories.
Do not want.

They should make a sex app for Wii fit.
…which would of course be called “Wii Fuck”.
i can’t Google it here at work.. but i’d be very surprised if someone hasn’t already made one.