Come up with a dirty scheme.

Hilda sits there for a moment showing everything to the world and wallowing in her shame when an idea strikes her.

If the troll is afraid of this sort of thing, maybe I can use it against her?

She awkwardly stands up on two shakey legs and puts her hands on her shapely hips, completely exposing her body to the squeamish monster girl.

The troll gasps at the nude woman's boldness.

Hilda's face is completely flushed in embarrassment at what she's about to do.