"Katie's had a change..."

"Katie's had a change," I said in a sultry voice, slowly walking toward her. "I'm not the little prude I used to be..."

"I can see that," Sarah said, more than a hint of approval in her voice. "What happened?"

I reached the edge of Sarah's bed. The sexual tension in the room was electric: we never broke our gaze, and Sarah's hand had begun to absentmindedly run the vibrator in and out of her slit.

"I realized something about myself..." I said as I crawled onto the bed. Sarah held my gaze, daring me to keep going: she wasn't moving away. "Something about who I am..."

Crawling up her body, I gently pushed her knees apart and started kissing my way up her thighs, taking the vibrator from her hand and continuing the slow rhythm she'd started. Sarah, still sensitive from her orgasm, lifted her arms above her head, leaned back, and sighed. "Do you know what I am, Sarah?"

Sarah moaned through a grin. "A really good surprise?"

I chuckled despite myself. "Well, that..." I quickly licked her clit once, making her take a sharp gasp, then continued kissing my way up her body. "But I have discovered..." I sucked each of her nipples for a moment, then continued up. "...that I..." Soft kisses on her neck made Sarah shiver as I whispered in her ear.

"...am a slut."

With that, I grabbed the vibrator and turned it on high. Sarah's eyes flew open wide and her legs wrapped around me, pulling me closer to her as I pumped the fake cock in and out of her pussy.

"Oh my god! Oh my god, Katie! Holy shit that feels good!" Sarah gasped as I fucked her pussy. "Don't stop! Oh please don't stop!"

But then, as abruptly as I started, I pulled the vibrator out of her pussy and held it there. Sarah whimpered with sexual frustration, and her legs tightened around me as she groaned into the nape of my neck.

"Are you a slut, Sarah?" I asked, torturously running the still vibrating toy over the very edge of my best friend's cunt. "Would you like to be a dirty little cock-whore like me?"

"I..." Sarah hesitated. She'd told me some of her fantasies before, and I knew she wanted this. It was just a matter of making her realize it...

"I asked, are you a slut?" I said, and slid the vibrator all the way inside her in one long motion, then pulled it back out. Again she groaned, **** for release, but I could smell the scent of her pussy and I could see the growing lust in her eyes. Still, she wasn't sure what to say.

Grinning, I pulled the vibrator up to my face and licked some of her juices off. Sarah's eyes were locked onto me, and I could feel how much she wanted me. She was totally getting off on being dominated like this, but I could also see something else: she wasn't just imagining getting fucked by me, she was imagining doing a little fucking of her own.

"Here's what's going to happen, Sarah," I said, reveling in the obvious desperation I was evoking in my best friend. "I'm going to fuck you like you've never been fucked. I'm going to fill every hole, tease every inch, and make you cum so many times you won't be able to move. I'm going to make you beg for cock, call yourself every filthy thing you can think of, and be thankful for the chance to taste my pussy. And by the end of the night, you're going to be a cock-hungry, pussy-licking gutterslut just like me." I moved the tip of the vibrator along her lips, then down her neck, over her rock-hard nipples, down her tight abs, and over the lips of her pussy. She shuddered under me. "Well, Sarah, what do you think?"

Sarah looked at me with hungry eyes. For the first time since I had arrived, I felt like she was totally aware of me, the sensations from her pussy offering only a slight distraction from the thought of my proposal. After a long moment, she responded with a ravenous grin.

"Ok."