Nah, as much as I would welcome such a change I don't think that is all too likely. Pretty much everyone in my family is similarly skinny, we all just have a thin build plus crazy fast metabolisms. I've been to a dietician and have been told that even without exercise I need to be consuming at least 4500 kcal per day before I can start gaining weight, and I simply cannot get myself to eat enough food to reach that calorie intake without feeling like shit all day long.