Give Sarah some attention

You turn to face Sarah. She was... quite the sight. All these people naked and casually fucking was driving her absolutely wild: the inside of her legs were stained with her juices, and she was blushing so hard you wondered if she was about to pass out.

You decided to help correct the problem, seeing as you were quite horny yourself. Reaching a hand down, you stroked around her two nipples, then down her belly and onto her throbbing cunt. Without any further delay, you slid your fingers into her pussy and begin touching her. She was extremely appreciative, leaning on you for support, and eventually bearing the energy to start groping your body.

"Uh, despite being constantly horny, you always have a lot of energy for sex. And you love fucking your roommate."

She changed in an instant, practically pouncing on you, your fingers still inside, and began licking your sensitive nipples. Sarah was a total slut, and would clearly not back off without giving you both several orgasms. As it should be.

You felt some warm liquid splat on your face. Turning towards the source, another arrived, coating your face in semen. Of course you don't mind (it only makes you more aroused), but you decide the rutting crowd outside needed some more instructions.

You stand up. "Everyone now sleeps in the same bed as their roommate, who you must fuck at least twice a day. You need to fuck everyone in your hall at least once a month, unless you're on vacation, in which case you need to fuck your brothers or sisters. Oh, and you all need to fuck me and Sarah every week, absolutely staining us in semen and girl fluids. Then you take pictures and post them on the web. Got that?"

Ordering a nearby boy to sit her on his lap, spearing her cute bubble butt, you get down and begin eating her out with gusto. You've had the hots for her the day you moved in, but now you not only could fuck her whenever, you had to. And random people would be having threesomes with you.

I turned to Sarah. She looked excited for the changes, as evidenced by her renewed masturbation and the pool of her vaginal drool on the carpet as the boy fucked her ass.