by the way, ectomorph does not mean what you think it means. you would be mesomorphs, not ectomorphs if you could continually eat without gaining weight or other negative detriment. stop using wikipedia for your definitions, jeez (source: Sheldon, Varieties of Human Physique)Isn't that technically wrong? I admit I only read a few journal articles just then but your somatotype doesn't really determine if you can continually eat without constraint and not have any negative outcomes but more it determines how much fat you store and how much muscle you can build, among other things.
If anything an ectomorph fits that definition the closest? (the whole eat what you want part)