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Actually having sex only burns 101 calories for men and 69 for women. Although if you do missionary position you can burn as much as 143 calories, she will only burn about 45.

Taking a walk for 30 minutes is roughly about the same workout, usually not as fun but your experience may vary.

In what time frame? I mean, some people could probably have sex for several hours meanwhile others for a few seconds... I'd love to burn 143 calories in 15 seconds. I'd make millions on a weight loss-book with those results.

Average session being 26 seconds

I can last 28

I think you have met my wife, I'd prefer to take the walk :D

haha, after 7 years of marriage I get this :) a walk sounds great

I've been married 5 years and a long walk of a short pier is great, and with all the flapping of my arms I would burn so many calories haha.

haha, I felt this way at 5 years and dream of a shorter pier with each passing year. I am trying to gain weight myself so I try and sit and do nothing as much as possible!