You guys enjoy that metabolism while it lasts. For many, once you hit middle age, it's over and you have to watch what you eat.
I was always slightly underweight, because my metabolism just didn't store anything up.
When I turned about 28, this started to change slowly. For some time I even had a decent weight.
Then I got twins, lost 10 to 15 kilograms because I just can't eat with blank nerves, and am unsuccesfully trying to recover them ever since :lol:
Currently, you can count my ribs instead of my sixpack... :shifty: