She had known he would say that, but still her heart was thundering.

His own heart was thundering with fear as he wrapped it once again.

She moved close enough that our bodies almost touched, and I could hear her heart thundering.

Her heart thundered against his back, and she kept forgetting to breathe.

The man's heart and lungs were thundering in my ears like a train.

His lips were a breath from hers, and she waited, her heart thundering.

"I saw them plain as day," Mac said, his heart thundering.

His heart thundered in his chest as she came closer.

His heart thundered hard against the base of his throat.

I stopped where I was, unable to move, my heart thundering.