He didn't answer immediately, and a tiny quiver of unease intruded on her massive contentment.

A tiny quiver ran the length of his lower lip.

And with all that, a tiny quiver underneath.

She spoke evenly, but her voice held just the tiniest quiver.

Then her voice dropped slightly and there was a tiny quiver in it.

Then she shook herself, a tiny subliminal quiver, and came back all business.

Was there even the tiniest quiver of fear in her voice?

At first he felt nothing but smooth skin, but then there was the tiniest quiver under his palm.

His head lifted and turned when he felt a tiny quiver of power, but he did not rein in the horse.

He approached, studying her eyes, the heat on her cheeks, the tiny quiver of her lips.