The same arm that had first caught her eye on the beach?

Before she went out, another arm caught her around the waist.

I would have fallen if his arm hadn't caught me.

Two arms shot out and caught that black savage by the head.

She tried to move away, but his arms caught her.

The long left arm caught the ledge of a window.

Although taken by surprise, Gabriel's strong arms caught and held her.

I fell back toward the bed, and only his arms caught me.

Two long arms shot out and caught the fellow by the throat.

It happened so quickly, his arm caught the full force of the landing.