"My pussy."

"Stick it in my pussy, Master," Kelly says. "God, I'm so fucking hot and horny. I just want to fuck that cock of yours. Please stick your dick in my pussy, master."

You can hardly believe the words coming out of your sisters mouth. And you can't wait to oblige her.

"As you wish, Kelly," you strip off your shirt and throw it to the side. "Please go to the bed and get on all fours, with your ass facing toward me."

She pouts and follows your command, crawling onto the bed. "Don't I get to see my Master's cock? I've been dying to see it."

"No, my little slut," you say. "You don't get to see it. You just get to feel it thrusting inside of you." You smirk at the back of her head as she assumes the position. She shudders and you strip off your pants and boxers, tossing them aside. You slip on the Cock Ring and make it appear in the same place your cock always is. You move up behind your sister.

You gaze at her ass and her waiting, needy pussy. You start rubbing the head of your cock at her pussy's entrance, teasing her and making her groan in pleasure.

"What do you want, Kelly?" you say, smirking.

"God, just shut the hell up and fuck me, Master," she says, sounding frustrated. "I need a good pounding so fucking badly. Stick it in my and fuck me hard."

You groan and, the next instant, shove your dick deep into your sister. She moans loudly as you stick it in. Her pussy feels warm, enveloping your manhood perfectly. You stop for a moment, taking in all the sensations. However, your sister has other plans. Without waiting for you, you watch as she starts to thrust back against you, moving her ass to start fucking you. You moan and go along for the ride.

"God, Master, your dick is perfect for fucking me," Kelly says, moaning.

"You like it, slut?"

"Yes, God, YES!" she says. "Call me names and fuck me! I fucking love it when people call me names."

You grab a hold of her hips and stop her. It's time to take charge again. "Then let me do the fucking, my slutty sister."

You start pumping your cock hard in and out of your sexy sister. She takes it, moaning with each thrust.

"Take it, you slutty bitch, you cum dumpster, you sick brother-fucker!"

She moans and, after a few more thrusts, cums hard around your cock, gripping it like a vice. Still, you keep fucking her, now fully into it, too far gone to even think of stopping.

"You cum like a slut, ****! You cum so easily! Well, tough. I'm far from finished.."

You keep fucking her, in and out, in and out. She cums hard again immediately. She can't get enough of your cock.

What should you do? Keep fucking her until you cum? Pull out and stick it in her ass? Make her take a load on her face and wear it proudly for the rest of the day?