My heart is pounding faster and faster, and the fear becomes panic.

The boys' hearts pounded faster.

Now, letting her sheer fright color the image, she visualized it pounding ever faster, struggling to cope with an emergency for which evolution could never have prepared.

Her heart pounded faster whenever she heard footsteps or voices.

Her heart pounded faster and faster.

Her heart pounded faster as his voice lowered to a deep, seductive whisper.

When he saw a head emerge from behind a pine tree, his heart pounded faster.

My heart pounded faster.

Meredith's heart pounded faster with each step.

They bent their heads and pounded faster, losing their previous rhythm and fouling each other's pestle strokes.