Raise her higher and eat her out.

You'd long fantasized of having your head between her legs. Undulating your fingers as you will the chains to move- which is harder while she struggles against them, long hair whipping around her naked body as she fights- you hover Filistra's crotch on-level with your face, with her knees and elbows bent and all her limbs spread opeb.

With a pleasant sigh, you lean in: you still give her your best, puckering your lips to suck-up some of her labia, then pull to the other side to do it again back and forth again up her vulva in a zig-zag. A lesbian had actually showed you that trick...

You're probably not as good as her, but the swirling kisses-with-tongue you plant rhythmically across her sex eventually have even Filistra's toes curling and hips trembling. "Augh- ah, oooh- you little shit!" She curses, resenting not just being bound, but forcibly pleasured...

Her vaginal orifice thickly secretes sexual fluids for your tongue to savor. Filistra's taste is not mild: she is a grown, libidinous woman of experience. It's tangy, musky and pungent between her legs- and you relish it, a taste as floral as it was foul.

But you feel her shift as she tries... -something. You're not sure what she could do though.