But now he was more comfortable, shoulders back, spine stiffened.

Each time, spines stiffen and there is a silent exchange of glances.

His spine stiffened, one hand trying to tear out the blade.

Sophie's spine stiffened at the thought of Laura married to this man.

The legs become vestigial, the spine stiffens until the creature looks like this.

He acknowledged Leon politely enough but his spine had automatically stiffened.

Beneath Gabriel's hand he felt her spine stiffen in defiance.

She had the feeling that she amused him, and her spine stiffened.

Shan-wei's voice was soft, but spines stiffened throughout the hearing room.

Mel could only roll her eyes as Ana's spine stiffened.