"Billy Cage, action sports newscaster here with the world's strongest man, Riley 'Muscle-brain'. Now Riley, they've been telling me that you're so swoll you're fit to burst out of your own skin. Like, your muscles contain more muscles that just can't fit inside. Like any tuxedo would rip if it landed on your shoulders."

"Oh, I know. This is why I wear only sleeveless shirts. I've been working on first one for a while."

"What?"

"Where you burst out of skin. I show  you my attempt."

Riley 'Muscle-brain' takes his time removing his shirt, does some heavy breathing exercise, and then he flexed.

At first his whole body flexed impressively, but not to the full extent. His eyes went completely vacant as he focused. Then the trapezius and sternocleidomastoid became as hard as diamonds. The skin around those neck muscles tore open. A surprising small amount of blood dripped out of the vertical cuts from his chin down to the collarbone.

Triceps, pectorals, biceps, and deltoids all exploded in one final flex of the torso. His skin became ribbons dangling from his inner flesh.

A strip of skin fell from half of his face revealing the muscle and bone underneath. With one look the reporter fainted and a living diagram of the human body picked up his mic, "this has been sports action news. Back to you Marisha."