He feinted once, low line, and halted as Shkai'ra's wrists and shoulders flexed into position.

Ferguson's chest was puffed out, his shoulders flexed back.

Through diligent weight training, that muscles that blanket his arms, shoulders and legs flex with every movement.

The head of the cat moved like a hunter's; its shoulders flexed rhythmically under the dark fur.

Raking a hand through my hair, I chided myself for still being on edge, flexed my shoulders, and bent over the board.

His shoulders flexed against the seat straps.

The major's massive arms and shoulders flexed against his chains.

Horsecapture stood in the center of the room, shoulders flexed, fists clenched, head down as he looked from face to face.

Tom's shoulders flexed as he took a step.

With his shoulders flexing under her palms, her head began to spin.