To diet/work out like a madman and be ripped but appear normal or even small in a dress shirt and tie or a sweater, but when the shirt comes off and the stunning combo of the eight pack, serrati, intercostals and obliques just pop in bitches' faces and bitches willingly become a sex partner for life. That's 10% or less bodyfat. Problem is when fully clothed nobody knows. OR shoot up to 14 or 15% and have huge chest/back/shoulders/arms plus massive quads. Abs are just about visible. In a short sleeve shirt, other males get intimidated, women flock and touch the arms. Again, they become easy booty calls, but they don't hold exactly the same sex fascination for 14/15% as they do for 10% or less.