Just found out browsing weight loss web sites. Calculates many values: Calories loss per activitie, calories contents per foods, how much time to loose weight according to differents sports......
http://www.caloriesperhour.com/index.html
Eating and exercising for two ya know 
Heck, I doubt either of us old fogies could last an hour at a vigorous rate anyway! Sigh, I guess I'll just have to have sex out of love and burn my calories (twice the amount in the same time) walking the dog. 
Jill!
Jill that is too funny. Of course in fitday, one hour of vigorous sexual activity is only worth 40 calories. Not that I ever actually leave any of that up in my public journal. I wouldn't want those single folk to get discouraged about life after marriage and kids 


Alright Jilly, I think that's just a little more information than we really need to know!
Sounds fun though!