Did you ever wonder how much of a workout you get during a good session of sex?   I did.  And now, thanks to the Fitbit bracelet with built-in heart rate and activity monitor, anybody can find out.

 Yes, you can have your fuck-session graphed in glorious colors.

Notes:

• All this activity burned about as much calories as in a small candy bar.
• The part at the end where I am receiving a blowjob is clearly visible
• Having an orgasm seems to be less impact-full to the heart rate than I expected

For optimal data gathering, I feel that both people should be wearing a heart rate monitor, so that we can compare activity levels.  Any geeky women out there that want to science?