Not quite.

Request (Diplomacy) vs. DC 15. 1d20+5=11. Failure...but the target might "propose an alternative that is less ****..."
Does the brownie do that? Fate Roll: Fate Chart, Likely (CF 3): 30 - yes!

"Hmmm," the little woman says. "No. Sorry."

"What?!" Gilia cries.

The tiny woman spreads her hands. "Really really really sorry! I really am! But Zippy Dick is like, really strong and kinda nasty. I don't wanna mess with him. Besides, he's not gonna, like, hurt you. Probably just train you up as a fucktoy and try to pass you off to Essameria in exchange for his old girlfriend. So that's not so bad!"

"I don't want to be a fucktoy!" Gilia wails.

The tiny woman sighs. "Oh, fine. Look. I can help out maybe a tiny bit, all right? Let's see..." She chews her lips for a second. "How about if I untie just your feet? That seems like it should help out a lot. And maybe Dick'll think that he was just in a hurry with the knots. He's always in a hurry." She rolls her eyes.

"Are you sure you can't untie my hands, too?!" Gilia asks as the tiny woman deftly picks at the knots binding her ankles together.

"Nah, way too obvious. This is good, it's like - subterfuge," the woman says cheerily. The ropes fall away from Gilia's feet and she kicks them away, struggling to her knees. "There, see! You're practically mobile already."

"Please," Gilia begs. "Just untie my hands! Finish the job."

"Uh-uh, girlie. I'm not messing with Dick's toys too much. You're gonna have to do for yourself here in Faerie," the woman says with a wink. She reaches up and casually gropes Gilia's full, bare breasts as the tiefling gapes at her. "Damn, and I see why Dick would think you might be the thing to change Essameria's mind, too! You're nice and juicy. Well, don't say that Buttercup never did anything for you. Good luck!" And, with a wink, the tiny woman turns on her heel and vanishes, a faint sparkle of golden dust drifting through the air in her wake.

"DAMN IT!" Gilia cries. She struggles to her feet, casting about herself desperately for some way to free her hands.