Bella and Andromeda exchanged looks before they started singing childishly:

"What Cissy wants, Cissy gets, Cissy always has what she wants when Cissy wants it..."

"Urghhh, I hate you both!" Narcissa stood up annoyed and began throwing cushions at her two sisters, who were laughing heartily as the three of them initiated a pillow fight.

Cassi ducked just in time to avoid being hit, but when she turned around, a soft cushion hit her face.

It was Andromeda.

She grinned mischievously before toppling Cassiopeia onto the couch and joining the fray.

(...)

A few months later

"Cissa, hurry up! We're already late!" Cassiopeia shouted from the staircase; the older woman always took hours to get ready before leaving the house. The reason she had no idea, she's already absolutely gorgeous.

"Forget it, little witch, Cissy has always been like this since adolescence," Bellatrix muttered irritably, examining her own nails.

Cassi turned to her, taking in her attire. A faint smile played on her lips as she approached the Dark witch.

"You look stunning, love," she smiled gently, toying with the raven necklace.

Bellatrix grinned mischievously, pushing her against the hallway wall abruptly. Cassiopeia didn't even have a chance to say a word before Bellatrix was all over her. The intense kiss caused Cassiopeia's hips to move on their own accord. She sighed happily as her lover slid a leg between hers. Though not quite enough pressure, it was better than nothing.

"Cissy should hurry, don't you think, pet? I've been thinking about how to get back at her for the little stunt in the living room."

Cassiopeia closed her eyes at the memory. Narcissa had fucked her against one of the pillars and when Bellatrix entered the room she continued without the slightest bit of shame, teasing Bella eliciting all of Cassi's wonderful sounds.

"And this is just the beginning. If Andromeda weren't so foolish, she would have already made our little sister pay for her incessant provocations. Honestly, what kind of arrangement is this that she came up with? Give you AN orgasm? No... My little sister unbearable deserves a spanking on that sassy ass."

Cassi whimpered at the tone and words as she tried to dodge the electricity of the dark witch's magic. When it just intensified, she moaned loudly.

"You are talented, little witch. But I still know a lot more about magic than you do. And I have every intention of using all my knowledge against you."

"C'mon Bella. It's Teddy's birthday and my hair looks so pretty." She whimpered with a pout

"No, I know you don't mind getting a little...messy," Bellatrix continued. "I can feel it's wet..." She laughed lifting the fabric above Cassiopeia's waist and magically holding it in place.

"Oh my, aren't these amazing."

Bellatrix's fingers lightly traced the baby blue lace panties she'd been given by Narcissa a few weeks ago. The blonde would be furious, she bought it so she could tear it off there personally like she usually does with all her underwear. Cassi couldn't sit still. She needed to move to those fingers. Her body was already begging for more.

"They look great on you, but you won't be needing them for a while. My little sister can buy others"

The lacy panties were pulled abruptly from her body leaving only the tingle of magic behind.

"Fuck you, Bella," Cassi groaned. She wanted so badly but couldn't find a language that conveyed what she needed.

"Narcissa better change clothes one more time. I intend to have a little time with you" Bellatrix murmuring in her ear sent shivers through her body. She gently lifted one of her legs around her waist, opening her fully. The young witch gasped as the cold air hit her clit before the heat from Bellatrix's body made her moan loudly.

"Oh love, you're ready for me aren't you?"
She could only bite her bottom lip and moan.
"Great" Bella smiled guiding two fingers inside Cassiopeia. Both of her legs wrapped around the witch's waist but held onto her neck for dear life to keep from falling to the ground.

"Oh Merlin. Fuck, Bella. Please."

"Oh yes, pet... Start begging now. Are you already close? I can feel you squeezing my fingers. Let's make this hard and fast. Do you think you can do this for me?"

"Yes, yes," Cassi moaned and tilted her hips in time with the fingers inside her. It felt good as it always did when her dark lover touched her.

"I want you cumming on my fingers, Little Witch. Once you do that, I'll be fucking you properly and hopefully right in front of Cissy. You better scream, I want her to hear. I bet that would make her mad and her panties ruined."

Cassi took a deep breath. The feel of Bellatrix in her, the promises of more and the way those dark eyes looked at her was more than enough to make her fall apart.

She leaned back against the wall and looked devotedly at Bellatrix as she let her control everything. Her hips were rolling and she was panting.

"Oh please Bella. I need to come," Cassi whimpered.

"Yes, you do, little witch. I can feel how much. You're wet and desperate, aren't you?" Bellatrix moaned deeply against Casisopeia's neck. She picked up the rhythm of her thrusts.

As soon as she was on the edge of the abyss, Bella bit her neck hard, catapulting them both to orgasm. She twisted her fingers together with a laugh, which made her shudder with pleasure as she rode.

Bellatrix didn't let her go down in pleasure, claiming her lips aggressively and Cassi did her best to keep up with the kisses, even when her legs wanted to give out in pleasure, she was going to crash to the floor.

A loud cough prompts Fes to look abruptly at the top of the stairs.

Narcissa looked fantastic wearing black pants and a white shirt cut so sexy it should be a crime to wear it in public. Her hair adorned in an elegant updo, falling between off-white platinum blonde and immaculate black.

Cassiopeia lost her breath once again in less than 10 minutes. But Narcissa's scowl and her smoldering gaze had her thighs clenching once more.

Bellatrix still had her fingers deep inside her pussy and she impulsively squeezed them when she felt a strong contraction and whimpered.

"Finished playing with my fiancée Bella?" Narcissa rolled her eyes as she stalked down the stairs like a cat.

"My girlfriend" Bellatrix huffed, "But to answer your question, yes. However, I think she just got even more turned on dear sister." Bellatrix cackled, thrusting her fingers together in an almost punitive sequence before abruptly withdrawing.

Cassiopeia gripped the wall to steady herself, almost whining again at the abrupt loss. It was Narcissa's arms snaking around her waist and pulling her hair that made her scream and then moan obscenely as the older woman kissed her voraciously.

"Naughty little witch. I had plans for tonight."

"Come on, little sister, don't be a hypocrite. The girl is mine too," Bellatrix scoffed, adjusting her own clothes with one hand while bringing the fingers she used to fuck Cassiopeia to her mouth, moaning as the taste hit her tongue.

"But I saw her first," Narcissa chimed in childishly.

Bella didn't respond, just gave her younger sister a shit-eating grin as she sauntered towards the door. "Say that again when she's screaming my name," she yelled as she walked through the foyer.

"Bitch," Narcissa huffed with a smirk, watching her older sister leave. "I'll deal with you later.
,Pet."

Cassi swallowed hard at the promise, slightly amused by the banter between the sisters.