Slap Katie and call her a slut

Nikki takes a deep breath and points at Katie. "Slap her and call her a slut."

Her request shocks you. You glance at Katie who doesn't seem to have much of a reaction, her hand still tucked between her thighs.

For a moment you think of how you can protest. But you realize you've insisted on doing anything your crazy cousin wants. You're stuck with this.

You play the scene in your head. You're going to walk over to your lovely girlfriend and smack her right across the face. You think you could never do such a thing. You know you're about to. And your erection only seems to rage harder, encouraging you to follow Nikki's demand.

So you do just that, you walk over to Katie, cock thick and throbbing, and stare down at her. You feel Nikki's eager, delighted eyes on you. Katie looks up at you. "I'm sorry." You whisper.

"Do what you have to do." Katie whispers back.

The tension builds in milliseconds. You know you can't put it off. Everything is happening so fast. You know you can't delay. You cock your hand back and swear it makes Katie start to rub herself faster. You feel a **** of primal animalism come over you.

"You fucking slut." you say, your voice dripping with disdain, and bring your open palmed right hand across Katie's pretty cheek. Her face jolts to the side, her long brown hair flies in every direction. You swear she's rubbing faster and harder now. You feel warmth fill every inch of your body. You feel power, but still unending adoration for this girl.

You hear Nikki let out a wicked, loud laugh. The type you know means she's truly happy. "Ask her if she knows why she's such a slut." She says.

Your sense of power is suddenly upended. For a split second you're Nikki's servant. Then you turn your attention back to Katie. Your her dominant. You're stuck in the middle, barely feeling like you're in control of your own actions.

"Do you know why you're such a slut?" You echo Nikki.

Katie runs her left hand through her hair, her right hand still fiddling with her clit. "Because I like the idea of watching your cousin suck your cock... and maybe joining in." She responds, with no uncertainty.

"That's right" Nikki shuffles over on her knees. "Now you're going to watch me give him the best blow job of his life. Understand, slut?"

"Yes" Katie's breasts heave up and down. Her nipples are as hard as you've ever seen them.

"But don't worry." your cousin goes on. "I have something for you to do while I'm doing that."

Katie cracks a smile