K. Olsen

So I am 28, 6'2" and around 145-150lbs depending what time of the year it is. I am pretty active in several areas not just cycling, I regularly play pickup games of basketball, soccer or volleyball. My diet is pretty balanced I think, I on occasion have fried food just because(like once or twice a week). My legs are pretty muscular from all the cycling and running, my arms are like Andy Schleck's, but I have this flabby pooch protruding from my waist line. What gives???