Her nympho sister

"yes sir, I... I think my..." Alice stops speaking so you roughly twist her nipple, making her scream "my sister sir!" she yells. "hmm" you say contemplatively "Carrie, if she stops speaking again, whip her cunt" you instruct your girlfriend. Alice quickly starts speaking again "I think my sister could become your **** sir" she says with pleading eyes

You gesture for Carrie to hold off on the whipping "chastity **** or fucktoy?" you question. Alice whimpers in fear of the whip Carrie is holding, since she can't see her with you in her way. "She could be either" She tells you "She's a massive nympho and really submissive!" she yells. You interrupt her amused "how do you know this about your own sister?" you question.

Alice whimpers "she's a slut, she'll do it with anyone, even me when she's drunk! please sir, I have **** for her, I can make her your **** just please no more flogging"

You smile at Alice "very well, starting tomorrow I'll give you one hour each day to make sure your sister becomes my ****, you'll have to make sure she agrees stay my **** for at least eight weeks. As agreed you'll be kicked out of this house on Sunday in a bra and a chastity belt, if you get your sister to be my **** your release will be together with Carrie, if you fail your release is in one year" you inform Alice cruelly.

"Please sir, that's too much!" she screams "then don't fail" you calmly tell her "Carrie, five licks of the whip" you order. Carrie obeys, making Alice scream with each hit. You take another picture.

You untie Alice and **** her to her knees "Carrie, where do fucktoys sleep?" you aks your **** who's still carrying her whip. "everything is set up in the basement sir" she answers. You nod "Carrie, bring this whore downstairs, tie her hands behind her back and leave her in the dark, then come back here, I'm going to play with you.

Carrie quickly obeys, she leads Alice down the stairs and into the basement, then through a door to a dimly lit room (the room you keep your washer and dryer in). In the middle of the room are two large steel boxes with small air holes in them. Carrie makes Alice kneel and ties her hands behind her back. As an extra touch Carrie tapes Alice's mouth shut before pushing her into the steel box and locking it. You had decided on using these boxes because they barely let any sound through and no light at all. Carrie had happily paid for them and insisted on buying two of them so you could keep multiple people at a time.

Carrie comes back to you in the bedroom and kneels. You grad and twist her nipples, pulling her up "tell me cunt, are you willing to do anything you're told?" you ask her, already knowing the answer. She nods "go get your remote" you order and she runs to the living room.

Carrie returns and kneels, offering you her remote. You take it and smile at Carrie "****, you did a good job and got me a fucktoy, so tell me, are you horny?" you ask her. She nods "and does being horny make you a better servant?" you ask. "yes master" she answers "and why would that be?" you ask her. "because I become more **** for release, and I know that if I'm not a good servant I won't get released"

You smile at your **** "go get the nipple clamps" you order. Carrie obeys and quickly returns with the clamps "listen slut, I'm gonna test your memory, which of the green buttons can make a very **** girl cum?" you ask her while placing the clamps. "uhm, the fifth one?" she guesses "nope" you say, pushing the fourth red button. It makes Carrie scream "I meant four and five sir" she screams.

"correct, so I'm going to lock you in the other box tonight, with the second button pushed, tied up and gagged." Carrie shivers at the thought "your **** will be, extremely **** when she gets out sir" she moans "anything else sir?" she asks "yes ****, open your mouth, it's facefuck time" you order.

Carrie opens her mouth and you **** your cock down her throat, grabbing her hair. You **** her head up and down your cock for a few minutes before pulling out and jerking off onto her face, covering her in your juice.

"cunt, get the ropes I tied my fuckhole up with" you order. Carrie gets on hands and knees on the bed and gathers the ropes.

Carrie gives you the ropes and you tie her hands behind her back before leading her down the stairs and forcing her to kneel. You blindfold your **** and stuff a pair of panties in her mouth, keeping them in with duct tape. Finally you push the second green button, making Carrie shake before stuffing her into the box and locking it behind her.

You go upstairs and prepare for the games you're going to play with your slaves tomorrow, then go to bed yourself.

Feel free to comment suggestions or ideas. Also it would be great if someone else added a chapter to my chastity storyline, so feel free to do so