Try lying

"That's right," you say, taking a step closer to the troll. "I'm totally... a... uh, sex pervert."

You blush as you say the words, partly out of saying such a thing, and partly for how stupid you think you sounded.

"I'm a uh... a Perv-o-mancer!" You say, mustering as much confidence as you can as you place your hands on your hips, trying to hide your embarrassment as you flash your goods to a stranger.

"And if you don't do EXACTLY as I say, I'll use my pervy arts to make you my ... slut... uh... slave. Yeah! My slutty slave!"

"God, I'm so fuckin' clever," you think to yourself, trying hard not to smile.

The troll stares back at you with a face you can't quite read.