No. I'll do what I want.
fat cells are like balloons, the have an amazing capacity for expanding and contracting. Skin not so much
that will tighten up with time if he stays lean and continues being active. especially if hes young. also its important to note he was VERY fat in order to achieve this.
how fat was he? 100lbs overweight? I don't see it tightening up all the way.