Betrayal

As she neared orgasm, Xandra decided - fuck loyalty. And fuck Willow. The witch was now inferior being, not worthy to be considered as potential ally, and, to make things worse - still innocent and devoted to do good deeds, and spread love, and other holy bullshit all over the world. The redhead didn't really know what meant to have real power, and lust for more of it. But still was dangerous. Xandra moaned, as she cum, spraying Slayer's face with her ebony-black semen, and instantly plotted her nest move. Few minutes later, silenced teleportation spell materialized her, and Buffy in front on redhead's house. While Xandra ordered Slayer to practice her new powers with removing any protective spells and barrier which could surround it, she prepared few spells for quick cast. As she was ready, vampiric duo entered building.

Tara and Willow were still fast asleep, hugged together, with their cocks still erect, and occasionally rubbing together, as two girls twitched in their dreams. Xandra smiled evilly at this sight, then cast one of the spells, she prepared: a powerful charm, which **** victim to be extremely susceptible for suggestion of the caster, and observed, as it sank deeply into Tara's mind, and completely merged with it. Satisfied with her achievement, Xandra ordered Buffy, to take care of Willow. Former Slayer obeyed instantly, and grabbed redhead's limp body, sat on the floor, then sat redhead on her lap as Xandra took the same position, but let Tara sit on her cock's shaft, making it's head stick out from between witch' legs. Finished with positioning, Buffy raised witch in the air, and with one move, impaled her on her monstrous cock.

With scream of surprise and pain, Willow snapped out of her dream, as her scream woke Tara too. For second both witches froze with shock, as the saw Xandra and Buffy, changed almost beyond recognition, and smiling cruelly with mouths filled with sharp, vampiric teeth. Willow tried to say something, but Buffy only grabbed her sides tighter, then started to lower, and raise witch' body like toy, literally fucking her cock with redhead's cunt, making her scream with pain, as Xandra began running her hands all around Tara's body using her magical power to arouse dark-haired withc with even slightest touch, while she whispered to witch ear:

"You like it, Tara. You just love feeling my touch, it arouses it beyond any reason..."

And despite her best efforts to resist, Tara felt Xandra's word becoming truth, as suggestion charm made her body and mind accept any word coming from Xandra's mouth. Feeling guilty, she tried to reinforce her will, to fight with suggestion by turning her eyes to Willow's ****, but Xandra wasn't idle either - as Tara turned her sight to her lover, another whispers invaded her mind:

"You are so wicked and dirty girl Tara... Watching your lover ****, to strengthen your arousal? If you like to watch her suffer so much, why won't you ask Buffy, to **** her harder? To bring her more pain?"

For a second Tara looked terrified by the words and idea, but then her eyes darkened, and lustful and cruel smile crept on her face, as she spoke to Buffy:

"Buffy, my dear, you are not doing it properly... Drive your big cock into her ass! Make her feel you for real!"

Both Willow and Buffy looked shocked at Tara, then, encouraged by her mistress mental command, Buffy obeyed and raised Willow, completely withdrawing from her pussy, then aimed for redhead's asshole. Willow looked at Tara with face of pure terror and betrayal, but then, without any preparation, Buffy, with all her vampiric strength **** redhead's as on her cock. Willow's eyes came wide with shock and pain so tremendous, she couldn't even scream. And to make things worse, she heard her lover's moan, as she came watching redhead's torment. Smiling cruelly, Xandra observed with joy as Buffy ravaged Willow's ass, and hearing redhead's helpless cries for mercy. Xandra felt Tara becoming more aroused again, as dark haired girl rubbed her pussy and ass with Xandra's cock, moaning lustfully. Xandra smiled cruelly, and decided to begin grande finale:

"You become so aroused watching Willow's ****, Tara... And I know what you want now... You grind your filthy cunt over my dick for some time now... I know you want it deep inside you... No matter where, because from now on it's only way for you to cum..."

As obscene words streamed from her mouth, Xandra felt Tara's moves becoming more frantic, as she spoke with voice barely recognizable by lust overwhelming dark-haired witch:

"Fuck me Xandra... I beg you... Fuck me!"

Xandra grinned with face of pure evil, as she spoke loudly, to make sure, Willow will hear:

"Oh, I will fuck you... But first you have to tell me that you love my cock more than anything else..."

"But it's true! I love your cock more than anything else in existence!", Tara squealed, as she tried to cum.

"Even more than Willow?", hissed Xandra.

"Yes! She means nothing compared to your cock!", Tara screamed instantly. Willow weak moans of pain stopped, as she looked, shocked at her lover. Two streams of tears rolled out of her eyes, but her pain only aroused Tara more, while Xandra positioned witch on her all fours, then with one move, penetrated her ass, making dickgirl cum instantly, then again and again, as vampiress buggered her. Enjoyed with outcome of whole situation, Xandra spoke to redhead:

"You see that Willow? She betrayed you and your love. For my cock. There is no true love in this world. Only lust and power. And I can grant you both."

For few seconds Willo watched blankly at her, not responding even when Buffy cum in her ass. But then something sparkled in redhead's eyes. Xandra was right. For second, Willow hated her for what she have done, but now she understood everything. Xandra simply showed her the truth of her words. Tara betrayed her - to sate her lust, she betrayed the person she "loved". Or more correctly, the person she wanted to sate the lust, and gain power. Willow eyes darkened even more, as she observed Xandra cumming in unison with Tara, but never stopping to fuck her, then made her decision:

"I want it. I want the power. I want to sate my lust, as I will, and I want to gain power make all those, who will stand against me, to pay dearly...", she shivered with these words, as her darker side, finally awoken, took control. Xandra smiled approvingly, then withdrew from Tara, and approached Willow. With one, predatory, move, she bit redhead's neck draining blood, and injecting her dark venom at the same time. Willow twitched, as she felt her body was invaded by dark magic. An hour ago, she would resisted, and ended as mindless sex ****, but now, she embraced it. And the evil rewarded her for it - in seconds her body changed, as her tits grown into DD size, her body rounded up into hourglass shape, her muscles developed beyond any human could achieve, and finally, her cock grew, into full, fourteen inches in length, and three inches in thickness. Xandra withdrew from Willow's throat, feeling incredible redhead's power adding to her own, then smiled satisfied, as former witch opened her eyes, and looked at her mistress with sight of pure evil. Willow looked at Tara, lying on the floor, frantically stroking her cock, and fisting pussy, to make herself cum, but being unable to. Redhead's smile become real sinister, as she spoke to Xandra:

"Mistress, I want you to suck her dry, while I fuck her. I want to see her life fading away in her eyes, as I cum.", Xandra's brows went up, as she looked at her newest offspring with pleasant surprise, then nod her head. She laid herself on the side of Tara's head, and ordered Buffy to suck her monstrous cock, while Willow knelt in front of her former lover, and with one spell closed her orifices, like it were, before this night. Then with cruel smile, drove her cock, without any lubrication or preparation into Tara's ass, making her scream with pain. Xandra moaned, feeling Willow's dark enjoyment of **** Tara, Tara's incredible pain, and Buffy's skillful mouth sucking her cock. For almost fifteen minutes, redhead enjoyed herself with newly discovered pleasures, as she felt herself slowly reaching breaking point. Sensing it, Xandra twisted her neck, then bite Tara's neck. Willow screamed with joy, as she felt the greatest orgasm of her life nearing, while Tara moaned both with pain, and arousal, impossible to sate, while her life was sucked out. Finally, redhead cum, observing with joy, as the last sparkles of life dissipate from Tara's body, and enjoyed the sight of Buffy's face being splattered with her mistress cum, when she orgasmed sucking last droplets of blood from Tara's neck. The trio untangled themselves from their victims body, and observed it for a while, until Xandra decided it to vaporize it with spell, to remove last trail of Tara's existence. Then decided to...