I buddy of mine gained 100lbs in 3 years (no joke) he went from 167 as a freshman in college, to 270 as a junior, hes 5-9, 16% bf. Hes benching 440x 3, and squating 575x1, hes got decent form on both...he swears he is 100% natural, is this likely...or even possible at 21 years old? The kid is a house. and his rents are small as hell (hes moms a big women), so i dont think hes got amazing genetics.