It pulsed like flowing blood with the rhythm of his heartbeat.

With one hand, he tapped the rhythm of his heartbeat on the nearest stump.

He placed his hand on her back and felt the quick rhythm of her heartbeat.

So I tried to help myself sleep by listening to my heart while trying to breathe to the rhythm of my heartbeat.

Idaho shifted from one foot to the other, his body swaying in a heartbeat rhythm.

Another minute, and a tic tugged at one eye, taking up the steady rhythm of her heartbeat.

Hot, beating with the rhythm of his heartbeat.

It had been the sweet musical rhythm of her heartbeat that had aroused him.

Her chest, which had stopped heaving, moved again to the rapid rhythm of her heartbeat.

Soothed by the rhythm of his heartbeat, her breathing softened and steadied.