Harry Potter and the Sisters Black 6(full chapter)

Just over a week later, Harry’s looking out the window at #4 with a slight smile on his face Just over a week later, Harry’s looking out the window at #4 with a slight smile on his face. His mind drifts back to the rollercoaster the last week had been.
He chuckles as he replays the scene with Bella and Cissa after they got back from their little tryst at Malfoy Manor.
Cissa walks into the room with a smug grin on her beautiful face and Bella pulls the ledger from her pocket.
Harry pats down his pockets for a moment before cursing, “Cissa dear, would you pop over to #12 and pick up the books I’d pulled in the library.”
Cissa grins pleasantly before she reaches into her pocket and pulls out two things the size of a deck of playing cards. She produces her wand and casts the spell to expand the objects back to their original size.
Harry grins as he sees that Cissa picked up the books he’d pulled. “Thank you Cissa dear,” Harry says before giving her a quick peck on the cheek.
Cissa blushes as Bella pulls the ledger from her pocket and expands it. The two women go to work reviewing the ledge while Harry picks up /Walking the Line/. Harry goes over to his desk and starts to read while his ladies go about their set task.
The book, Harry discovers, is less on actual spell casting and more about redefining the line between Light and Dark magic. The author challenges the views on many spells, including the Unforgivables. Harry notes some of the arguments hold some validity, such as using the Imperious on an attacker during a hostage situation, while others a bit of a stretch, like using the AK to stop a rampaging magical creature. Still on the whole, the author makes more valid points than Harry’s comfortable admitting, such as using Crucio when trying to apprehend a target who’s got a strong Shield Charm in place without killing said target.
Harry’s about half way through the book when he makes the decision to set it aside and digest what he’s already read. He looks up and sees that it’s almost time to eat, so the three head down to the kitchen.
*
Harry shakes his head as he forces his mind away from the other book for the moment.
Instead, he shakes his head as he lets his mind drift to the series of incidents that happened during supper that night.
*
As Harry leads the procession in, Petunia gives him a very pleasant smile. Harry smiles and nods in response as he goes over and sits down at the table while Bella sets the table and Cissa makes a pot of tea.
During the course of the meal, Petunia gives Harry several apprising glances and Harry keeps switching his attention from his presently overly innocent ladies to his aunt.
Harry feels a petite foot rubbing against his ankle. As he looks at Bella and Cissa they both just smile innocently as the foot makes its way up his leg at which point Harry bats the foot away with his leg. At the round table, Bella is sitting directly to Harry’s left with Cissa sitting opposite her while Petunia is looking directly at her nephew. As Harry looks around the table, he can see his aunt blushing mildly. Harry asks, “Can I help you with something aunt Petunia?”
Petunia clears her throat and says, “Not at the moment Harry dear, thank you though.”
Harry looks suspiciously at the three women sharing the table with him. “Cissa honey, would you mind telling me what’s going on?”
Cissa opens her mouth to deny that anything’s going on but then her master locks gazes with her and his eyes bore into her mind. Despite her intentions, Cissa says, “Master, I’m sorry, but your aunt enjoyed our time together and asked for another session. I knew of your fantasy from a few days ago so I struck a deal with her. If she helped to bring your fantasy to life, I’d do whatever it took to arrange another session.”
Harry can feel the rage welling up inside but he swallows the angry words as he sees his aunts expression. The woman looks to be close to tears and humiliation is etched on every line of her face.
Harry holds up one finger as his aunt begins to open her mouth. “Narcissa, I’m very upset with you. You went behind my back to arrange a scene that had no chance of coming to pass. Go up to our room and wait for me, I’ll be up eventually.”
Both Bella and Cissa silently get up from the table and walk out of the room.
“Now aunt Petunia, first off, I’m not mad at you, I just wish to know why you went along with this.”
“I’m so sorry, but I was desperate. I’ve been without any form of companionship since before Dudley was born. I was willing to do whatever it took.”
Harry closes his eyes as he fights to retain his composure. “What exactly was the deal you made with Cissa?”
“If I’d let you sleep with me, she’d see to any further issues I had during the rest of your time here.”
Harry shakes his head as he massages his temples, “I’ll talk with Cissa and see what I can do. In the interim I would appreciate it if you would curtail your attempts to seduce me.”
“Very well Harry. Might I ask what you’re going to do to the ladies?”
“Honestly I don’t know. I’ll try to do something to help you, but beyond that, I don’t know.”
Petunia nods her head as Harry stands up and walks up to his room.
In his room, Harry finds Cissa stripped naked and hanging from the shackles on the ceiling while Bella kneels next to her dressed in the maids outfit with her head on the floor.
Harry quickly closes the door, “Bella dear, please release Cissa.”
Moments later, Cissa is kneeling next to her sister, head on the floor and her arse high in the air.
“Stand up Narcissa.”
The blonde jumps to her feet and stands with her feet shoulder width apart, her arms clasped behind her back, her chest pushed out and her head down, studying her feet.
“Now Narcissa, I’m extremely upset with you. I want to punish you very severely but I don’t think I could come up with anything sufficient to the task so, I’m asking you. What shall your punishment be?”
Cissa looks up and swallows hard, “Might I ask how badly I’ve offended you master?”
Harry locks eyes with her and she almost takes a step backwards, “I’m very angry with you Cissa.”
Swallowing again, Cissa responds, “May I have a minute to consider master?”
“You may.”
Cissa’s mind races, her loyalty to Harry and the drive to follow his orders wars with her natural desire to avoid pain. Through it all though, the plan that she and her sister had worked out is foremost on her mind. Finally she says, “There are a couple of items I would like to retrieve so we can begin my punishment, it that is permissible master.”
Harry nods and Cissa quickly goes and retrieves the box she acquired during their trip to the Alley. Out of the box, Cissa pulls a strange looking device. It’s about eight inches long; it comes to a point at the end but swells towards the bottom, before pinching off just above the base, which is a flat plastic disk. Next she pulls out a long silvery cylinder. Finally, Cissa goes over and grabs the strap before returning to her place in front of her master.
She takes the cone in hand, “Do you know what this is master?”
“Not really Cissa.”
“This is what’s referred to as a butt plug. It’s normally used to loosen a person up for sodomization. This one is special though. Please tap it with your wand.”
Curious, Harry complies and the plug glows a soft red for a moment.
Cissa hands the plug to Harry before she turns around and bends over, “Would you please push the plug into my arse master?”
Hesitantly, Harry sheathes his wand and steps behind Cissa. With one hand he parts her taut asscheeks then he slowly pushes the plastic plug into her, eliciting a prolonged moan. When the plug is all the way in, the base glows a soft yellow.
Cissa slowly straitens up, before she turns around and drops to her knees. After placing a kiss on each of her master’s feet, Cissa looks up at Harry and says, “Thank you master, the plug is spelled now so that it can only be removed by your expressed consent.” Harry blushes slightly as Cissa continues, “I’m afraid I’ll need my sisters’ help for the next part of my punishment master.”
Harry nods at Bella who stands up.
“Sister dear, I need you to lie on the bed face up and naked.”
Grinning evilly, Bella quickly has the uniform on the floor and is lying on the bed with her legs spread wide.
Handing the strap to her master, Cissa bends over the foot of the bed and Bella moves down so that Cissa head is between her legs.
“The second part of my punishment is that I have to eat out my sister while you deliver fifty blows to my arse.”
Harry shudders for a moment before he says, “Cissa dear, if you can make your sister orgasm before I finish your punishment you can give her ten blows to her cunt, but if she doesn’t come, then she gets to give you those ten blows.”
Both of the women shiver from the thickness of Harry’s voice.
Cissa takes the silver cylinder in hand and presses her finger against the bottom and it starts to shake. Cissa slowly pushes it into Bella as Harry brings the first blow down on her arse.
The crack and splotch of red rewards Harry’s effort, along with a small yelp from Cissa. Harry repeats this forty-nine more times, each time Cissa screams a little louder. Just as the final blow lands though, Bella screams out as she comes. Cissa’s ass is bright red as she turns around and looks at their master, “Who wins master?”
Harry smiles benignly as he hands the strap to Cissa. Bella screams when the belt comes down between her legs and her voice is hoarse when Cissa is done.
“Bella dear, can you stand up?”
Her legs are a bit unsteady as she stands up and goes over to beside her master.
Harry takes the strap from Cissa and hands it to Bella, “Now Cissa dear, switch spots with your sister.”
Cissa gulps as she positions herself on the bed with her legs spread wide.
“Bella hon, you may start when ever you’re ready.”
Grinning, Bella brings the strap down as hard as she can on her sister’s waiting cunt. When she’s done, Cissa has almost lost her voice.
*
Harry shakes his head once more, still unsure what prompted him to set the sisters against one another then to punish them both. Still, Aunt Petunia was in a better mood since Harry told Cissa to act as though Petunia had made good on their deal.
Scratching his head, Harry contemplates Cissa’s butt plug, over a week later and she still insisted on wearing the thing; asking permission before using the lavatory and replacing it as soon as she is done.
Harry goes over to his desk and sits down before his mind takes him down another path, the trip to Gringotts and what happened afterwards.
*
When the appointed day arrived, Tonks, Harry and the Black sisters are waiting in Harry’s room, at exactly 9:55 a nondescript owl flies into the room and lands in front of Harry. When Harry removes the letter and opens it he finds only a time written, 9:59.
“Every one wands out then grab on, this should activate in a few minutes.”
However, as soon as everyone’s touching the letter, the portkey activates.
Moments later, they arrive and manage to keep their feet as they scan the room.
Rupert is sitting behind his desk, looking completely nonchalant, as though people arrive in his office all the time prepared for a fight.
“Ah, Mr.