Establish dominance

Zoe does finally shut up and hold still. Her face is bright pink where you struck her, and her eyes look watery.

"Don't give me that look, little sister. I know you're soaking wet down there. Are you getting off on this?"

She shakes her head, "Get offa me, you bastard, I don't—"

Her laundry basket is nearby, so you grab something small and stuff it in her open mouth. It turns out to be a pair of her panties. With your hand clamped over her mouth, it's simple to keep her from spitting the thing out, and you take a look around her room. The box of toys was knocked over at some point during the fighting, its remaining contents spilled across the floor.

One of the small vibrators is close enough for you to grab, so you pick it up. Your glasses indicate she's desperately aroused but also ashamed of that and angry, so she won't likely admit it.

With your one free hand you switch it on and hold it up in front of her face. It buzzes conspicuously and gets her attention immediately.

"I know you're a nasty sort of slut who fantasizes about this exact sort of scenario. So either you're going to admit that to me, or I'm going to touch this to you and we'll just see how long it takes you to come."

Her eyes widen and she 'mmfffs' loudly into her makeshift gag, shaking her head fervently.

"No, you're not secretly into **** fantasies? Or no, please don't because you're going to be a good girl and admit it?"

She pauses, unsure how to respond to the confusing question without the ability to speak.

"Let's just find out. I think you need it in any case." You shift enough to let your hand between her legs and press the vibrator against her tight exercise shorts where you expect her most sensitive point to be.

Knowing your goal, the glasses are able to help guide your motion and you're positive you hit the right spot because she immediately tenses and groans into the gag, clenching and breathing hard through her nose.

A look of pitiful, lust-drunk desperation fills her eyes.

To your great satisfaction, your glasses indicate she is going to climax in 3... 2... 1...