Asserting Dominance (Buffy the Vampire Slayer)

A/N: Asserting Dominance was originally written in two parts from April-May of 2017. I'm compiling those two pieces into an easy-to-read one shot here! Enjoy!

Summary: Xander recieves an injury from a demon that the Scoobies come across one night. Just some simple scratches, should have been fine right? Except now he's waking up feeling stronger than ever, and a hunger deep inside him that just won't go away.

Themes: Dom/Sub, Mild Brainwashing, Master/Slave

-x-X-x-

Xander scratched at his arm for the fifth time in as many minutes and grimaced. After a moment he pulled up his long sleeve to look at the bandage underneath. Around the edges he could see the claw marks that had once been completely covered peeking through. A demon had caught him with its claws a couple days earlier on one of their nightly patrols. Buffy had been able to kill it only moments later, but the damage had been done.

They'd assumed it was physical, but the thing wasn't healing and Xander was finally starting to get worried. Still, it was late now and the young man really didn't want to bother anyone with his problems. The rest of the gang was out while he stayed in to recover. Interrupting them now wouldn't just be annoying; it might distract them in a moment where they needed their focus. Letting out an explosive sigh, Xander resolved to bring the growing claw marks to Giles' attention in the morning and flopped down on his bed, trying to catch some sleep.

His sleep was plagued with strange nightmares of a pinkish red haze over his gaze as he hunted down, dominated and impregnated each and every woman in his life. It was incredibly realistic, it was like he could feel their tight cunts wrapped around his dick as he rutted them each into the ground until they were nothing but mewling kittens waiting for their next load of cream. He woke up with a start right as he finished nutting in the last girl, sunlight streaming through his window.

Xander felt amazing in that moment. Looking down at his arm, he smiled to see no trace of the claw marks creeping out from under the bandage. It didn't itch anymore either so he pulled the covering off to find smooth unblemished skin underneath. His smile turned into a wide grin and he hopped up out of bed, only to find himself literally springing onto his feet from a laying down position with seemingly no effort.

Blinking, Xander looked down at himself, frowning slightly. That was a little weird wasn't it? Shucking off his bed shirt and moving to the closet to grab some actual clothes, Xander passed by a mirror and stopped suddenly. Slowly backing up, he looked at himself in said mirror and was shocked to find his body had undergone an entire transformation. He had fricking muscles now, big muscles.

"Holy shit, what the hell happened? It's like I pulled a Captain America overnight…"

Xander stopped as he heard his voice. It was deeper now, and there was this reverb underneath that made him sound incredibly strange to his ears. He ran his hands over his abs and let out a disbelieving laugh. God damn, Xander felt so fucking alive. Not to mention, hungry. Moving to the kitchen he was quick to make himself a meal. He wanted something more than just eggs and toast though, and soon found himself piling a sandwich high with an entire pack of lunchmeat. Biting into the thing was semi-satisfying, but not quite good enough. He still devoured the entire sandwich but he was left wanting more when he was done.

The phone suddenly rang and Xander immediately zeroed in on the device, startled by the loud noise and baring his teeth at it for a moment before realizing what he was doing and snapping out of it. Clearing his throat, he stepped over and picked up the phone.

"Yes?"

There was a pause on the other end before Buffy's voice came through, clearly confused.

"Um, hi. I'm looking for Xander Harris?"

Xander chuckled at that, his new voice reverberating through the room.

"Buff, it's me, Xander. What did you need?"

Another long pause until finally she speaks again.

"Uh, I guess it's a weird thing with the phone, you sound totally different Xander. You didn't check in with us last night like you were supposed to, I got worried. How're the claw marks doing?"

Furrowing his brow, Xander thought back to last night. Huh, was he supposed to have called? It must have slipped his mind.

"Sorry Buff, uh, they're fine. Completely gone in fact. I've never felt better."

Once more, Buffy paused. Xander was beginning to worry, wondering why she was taking so long to answer each time he talked.

"Gone? That's… Xander, why don't you come over to my place and we'll go see Giles together just to make sure everything is fine."

The thought of seeing Buffy in person caused a strange feeling to well up inside of the transformed male. After a moment, Xander decided it was a good feeling and grinned wide.

"Sure Buff. Be right there."

He hung up without letting her say anything more, not really interested in waiting for several more moments for her to speak again. Suddenly, he had this sense of urgency that hadn't been there before. Or perhaps it had, but until his conversation with Buffy, it'd been in the background. Now Xander knew he had to see Buffy in person, had to breath in her scent, had to touch her. Blinking at those strange thoughts and once again shaking his head in an effort to clear it, Xander slipped out of his house and made his way towards Buffy, the sense of anticipation growing inside him with every step.

When he knocked on her door, Buffy answered in record time, and as soon as they laid eyes on each other they both froze. Xander found himself trailing his gaze up and down Buffy, taking in her petite yet curvy form with a slow wicked grin sliding onto his face, transforming his visage. For her part, Buffy took note of the change to his body, even hidden as it was by his T-shirt. The change was obvious immediately, he was even noticeably a few inches taller as he stepped up to her, grinned down at her, and then stepped past her.

Buffy's mouth opened and closed like a gold fish before she whirled around to find Xander was already halfway up the stairs. Coming back to herself, Buffy moved after him, following him up to her room where he closed the door behind her once she stepped inside. The Slayer turned to question Xander, ask him why they weren't leaving for Giles right away like she'd originally intended, but then his mouth was on hers, his hands cradling her face as he leaned in to kiss her deeply.

It took a moment for Buffy to get her bearings, and then surprisingly, it took every ounce of her Slayer-enhanced strength to push him back.

"Xander! What the hell do you think you're doing?"

The man who looked back at her was nothing like the Xander she knew. There was a resemblance, passing at best, but that was it as Buffy saw the hunger, the lust in his eyes. His jaw set as he pulled her close, not letting her escape his embrace.

"I'm finally taking what I want Buffy. You've teased me and led me along for far too long."

Eyes wide, Buffy did the only thing she could think to do and reared back, landing a punch on her best friend's chest that would have caved it in from the sheer power she'd put behind it alone until today. Today, it just rocked Xander back a single step and his grin just widened as he recovered from her attack. Then he was on her, and Buffy could do nothing but howl and struggle as he forced her to the bed.

"Stop it Xander, this isn't you! You're possessed o-or something! You're infected by whatever was on that demon's claws! You don't need to do this!"

Despite her Slayer strength, Buffy's flailing amounted to nothing as Xander wrestled her to the bed, pinning her face down and grabbing at the hem of her jeans before outright tearing them straight off her body. Buffy yelped in protest as he ruined her favorite jeans, and then she felt his hard on rubbing at her panty clad ass from behind, only the material of his own jeans and her panties between them.

Buffy froze up for a moment in shock and Xander used that moment to unbuckle and unzip his pants, pulling out his hard length. The pinned Slayer made the mistake of looking over her shoulder at his crotch and her eyes widened dramatically as she saw the huge prick standing at attention between Xander's legs. Her struggling doubled as she clawed at her bed sheets and tried her damnedest to crawl away from her best male friend, tears threatening to escape from her eyes.

"X-xander p-please, don't do this…"

He just laughed again and his voice sent shivers down her spine just like it had over the phone. It both aroused her against her will and confirmed that something was seriously wrong with Xander. But it did nothing to stop what was coming as he pulled her struggling form back under him and grabbed her panties as well, pushing them aside and positioning the head of his huge pulsing length against her slit from behind.

Then, he was inside of her and Buffy's mouth dropped open in a large silent O as he impaled her on his cock, pushing deep until he hit her cervix and only then pulling out halfway before thrusting back in. He leaned over her, one arms on the back of her neck to keep her down and the other gripping tight at her hip for stability as he proceeded to plow her into her bed without an ounce of kindness or compassion.

He was gigantic, and Buffy had known that when she looked back at him, but now she was feeling it, feeling every inch of his huge cock and she was being buried by it, a haze settling over her mind that she couldn't shake as he fucked her and fucked her. The pain of taking his massive size faded quickly to be replaced by pleasure. Her struggling weakened to nothing as she mewled under him, her hands no longer clawing at the sheets to try and escape, but instead kneading at her bedding as her hips back to push back against his thrusting.

Buffy's ass smacked back into his crotch again and again as she began to moan like a wanton slut, panting like the bitch she was becoming as he continued to fuck her. She didn't know if she'd ever be the same after taking this huge cock, and while some part of Buffy knew it was some sort of demonic influence clouding her mind and eroding her rational thought, that part was quickly being… well, eroded.

Soon, Buffy was nothing but a submissive fuck puppet under Xander's powerful thrusting frame, crying out happily each time his length hit new spots inside of her tight cunt. But Xander was not happy with just her pussy. As he fucked her into the bed, his eyes trailed up above that to her asshole and he brought a thumb up there, pressing against her rosebud until it gave way before his finger.

Buffy let out a gasp, but did nothing to resist as he began to thumb her butthole in time with his thrusts. Xander stared at the tighter hole for several long moments like this before coming to a decision and pulling out of her cunt. Buffy moaned in utter disappointment, only for that moan to turn into a yelp a moment later as Xander began to push the head of his messy lubed up cock against her tiny asshole. All the beaten down Slayer could do was groan and pant in discomfort, crying out in pain every time he pushed too fast or too hard.

Eventually though, he was steadily feeding inch after inch of his hard cock into her poor tiny ass and Buffy was taking it like a champ. Then, he began to thrust there too and Buffy's eyes rolled back in her head at the mixture of blinding white pain and black out pleasure. It was in that moment that Buffy found out just how much of an anal slut she was as she began to cum from having her butt fucked, crying out to egg Xander on verbally.

"YES XANDER! DESTROY MY TIGHT ASSHOLE! FUCK ME HARDER! OH GOOOD I'M CUMMIIIIING!"

Her bowels clenching around his length rhythmically and her words seemed to do the trick, sending him over the edge after sending her through mind blowing orgasm after orgasm. He pulled out of her ass at the last second and proceeded to paint her ass, shuddering back, and sweat slicked blond hair with a copious amount of his white seed, covering her in a coating of it before he was finally done cumming.

Buffy lay there face down, panting heavily and half unconscious, half delirious with pleasure. Xander knelt behind her, panting as well, but not yet tuckered out like he'd left the Slayer. In fact, something inside Xander still felt anticipation. There was a scent in the air, one that had not been there when he arrived. Xander turned his head slowly to find that at some point the door to Buffy's room had been cracked open.

Through that crack, he could see an eyeball. He locked gazes with that eyeball and he knew it saw him back, because he heard a girly squeak and then it disappeared. Hopping off the bed, two long strides brought him to the door and flinging it open, he found Dawn having fallen back on her ass, her pants down around her legs and her hands covered in her juices from where she'd spread her legs wide and been pleasuring herself to his and Buffy's passionate rutting.

Xander found himself grinning down at Buffy's younger sister, and it was not a nice grin. She looked into his eyes and let out a little 'eep' as he addressed her with his new voice.

"Dawnie, what do you think you were doing?"

She swallowed convulsively, trying and failing to answer him.

"I, I…"

Xander let out a low growl, stepped forward, and grabbed her by her dirty blond hair.

"I don't actually care Dawnie, just making small talk."

Then he shoved his cock in her still open mouth and Dawn could only let out a muffled yelp as he began to face fuck her. His semen, mixed with Buffy's juices was forced down Dawn's throat and in mere moments the young girl was no longer struggling uselessly against him. In fact, much like Buffy she began to actively participate in her own defilement and degradation, sucking desperately at his pistoning cock as her hands went back to touching herself.

She pushed her fingers in and out of her needy cunt as Xander fucked her throat, causing her to gag and choke but giving no respite as he used her mouth like it was his own personal fuck hole. In that moment though, it was, and Dawn was perfectly happy with that. Her lips suctioned down around his length and her tongue ran along the bottom of his rapidly thrusting cock. She did her absolute best to accommodate him until he was done, and then when he finally came once again, she hastily swallowed down the torrent of cum that came from his cock before it could drown her.

After he was done cumming down her throat, Xander pulled her up onto her feet, still gripping her hair and dragged her into Buffy's room. She was tossed onto her back next to Buffy and then Xander was between her legs, his still hard cock pushing into her wet and ready virgin cunt in an instant and tearing through her hymen. Dawn gasped in discomfort, before she felt Buffy's hand on her face, turning her head. Suddenly, her sister was kissing her on the lips, tongue pushing into Dawn's mouth as Xander fucked her.

In that instant, both sisters were lost. They could never come back from this, but then they didn't really want to come back at this point. As Xander fucked Dawn hard enough to make the bed shake beneath them and cause her small tits to shake up and down with each thrust, Dawn and Buffy made out, not as sisters, but as the first servants of their new god in human form.

-x-X-x-

Xander woke up slowly in Buffy's bed to find both her and her sister cuddled against him on either side. He felt different again as he came to full awareness, more powerful in fact. Taking these two and making them his pet slaves had given him strength. It had also given him a hunger for more though. He wanted, needed to expand his harem. Yet at the same time, an inner voice told him that he had to find the best of the best. Only the cream of the crop would do.

As he considered who exactly that meant, he looked over the women in his life and found to his pleasant surprise that most of them counted. Buffy didn't attract common people to her side after all. His mind went to a certain red head, a girl he'd been friends with all his life, long before Buffy had barged into it. The name left his lips in a murmur before Xander was even conscious of it.

"Willow…"

It seemed even this quiet; his voice was enough to wake up his love slaves. Buffy and Dawn startled at his sides and looked up at him with happy delirious smiles. Buffy spoke first.

"Mm, Xander, let's have some fun. Don't you want to fuck my ass again?"

Dawn was quick to step in with a low growl, not liking the idea of her older sister hogging their god's hung cock. She put on her most seductive tone, giving Xander her best sultry grin as she spoke.

"Or you could fuck my tight young throat again Xander! I know you loved doing that earlier!"

Xander looked between the two eager sisters and snorted. His hands came up and pet their heads for a moment, running his fingers through their soft hair. Both girls immediately nuzzled into his touch, their eyes drifting shut as their smiles spread wider in pure happiness. Then, he slowly began to push them down. The mind broken pets immediately understood what he wanted and slipped under the sheets down towards his waist.

Pulling his hands off their heads and lacing his fingers behind his own head as he leaned back, Xander let out a contented sigh as Buffy and Dawn got to work on his cock, slowly bringing it to full hardness and tag teaming the thing with their tongues and mouths, fighting over who got to choke themselves on his length.

Yes, Willow would be next. The powerful witch would make an excellent addition to his pets.

-x-X-x-

Tara was out when Willow heard a knock on her door. Brow furrowed, the red headed witch made her way over and looked through the peephole to find Xander standing there with a smile stretched across his face. Smiling as well, Willow quickly unlocked the door and opened it for her best friend.

"Xander, what are you doing here?"

He stepped inside and Willow let him, seeing no reason not to as she closed and relocked the door. Turning away from the door she found Xander looking around curiously. Instead of answering her question, he eventually asked one of his own.

"Is Tara out right now?"

His voice was… Willow blinked rapidly as the tone seemed to reverberate through the room and through her body. Her mouth opened and closed a few times before she collected herself.

"Uh, um, yes she is. It's just me. Xander, you sound different than usual."

He turned to face her and Willow took him in fully for the first time. Xander was changed, she realized that instantly. He was taller and more muscular, looking more like a professional football player than the Xander she'd known all her life.

"I feel different too Willow. I'm a new man now. And I've come to a realization, a sort of epiphany about life."

He stepped towards her and Willow caught a whiff of a smell she couldn't play. It was not a bad smell, in fact it was quite intoxicating and the witch felt herself going a little weak in the knees as she breathed in Xander's scent. At the same time, she took a step back from the advancing Xander, her back hitting the door.

"What… what's that Xander?"

Her hand inched towards the lock on the door as she contemplated trying to flee, but suddenly Xander was inches from her face, his own hand slamming into the door with force as he leaned in.

"I love you Wills. I always have. And I'm tired of letting go of the things I love."

Willow's mouth opened as she tried to give a response to the sudden declaration. She loved Xander too, but she also loved Tara. She also didn't really appreciate being referred to as a thing, and the red head was of half a mind to tell Xander off for that as well. But when her mouth opened, Xander breathed and a cloud of pink mist expelled from his lips directly into her mouth, causing Willow to cough and hack as the smoke went down her throat.

The effects were instantaneous as Willow's legs gave up the struggle of keeping her upright and she began to fall. Xander caught her as she climaxed in that same moment, her body convulsing uselessly in his arms from the powerful orgasm it was forced through. Willow was barely cognizant of what was happening, but she could tell Xander had picked her up and was carrying her bridal style.

He laid her down on her and Tara's bed she was pretty sure, and all Willow could do was moan out in denial as he undressed her defenseless body.

"Xander… no… I… I…"

He leaned over her and kissed her. More of his breath went directly down her throat as he made out with her pliant mouth and all thoughts of refusal left Willow in an instant. Instead, her hands came up and the red head helped Xander get her naked, and then helped him to pull off his clothes as well. Willow was in a state of frenzied lust at this point that seemed to have taken ahold of Xander as well.

Their subsequent joining was not slow or gentle. One moment he was leaning over her and the next his cock, his big beautiful monster of a prick, was inside of her, her legs wrapping around his waist as Willow moaned into his mouth. He was so damn big, filling up every inch of her writhing body as she lay under him and took his long hard thrusts. Xander was making her his and Willow knew she could never go back to the way things were after this, but she couldn't even conceive of fighting back.

The witch came again, crying out against his possessive and dominating mouth. Her pussy juices gushed out around his huge length as it pistoned in and out of her wet passage. Said passage tightened and clenched rhythmically around Xander's cock until finally Willow felt his thrusts become erratic, felt his warm prick begin to pulse inside of her. His hot cum filled her womb up and in that moment Willow was as lost as Buffy or Dawn.

Xander's seed brought her low and kept her there as Xander himself collapsed on the bed beside her, panting a bit. Willow cuddled close to her god's perfect body, his softening cock still inside of her and holding his majestic gift inside of her womb as she smiled at the thought of being swollen with his child. Slowly tilting her head up, Willow smiled at Xander, who smiled right back at her. It felt right now, so she said the words.

"I love you too Xander. I've always loved you."

His kind smile turned into a wicked grin that spread across his face as he reached out and brushed her hair from her face.

"Of course you have. And you always will love me Wills. But Tara won't understand. We're going to have to make her, alright?"

Willow's brow furrowed at that. She couldn't comprehend disobeying Xander, he was her god. But her heart still ached at the thought that Tara wouldn't approve of this. Tara would see this as a betrayal and it pained Willow to think her girlfriend would no longer love her when she found out. Yet, the thought of making Tara understand gave Willow hope. She looked at Xander with complete trust and earnest devotion.

"What do we need to do Xander? How can I help?"

He smirked down at her and then shifted so he was over her again. Willow looked down at their joining even as she felt him growing hard inside of her once more.

"First, we're going to fuck again. Then, we'll prepare for Tara's return."

Smiling up at her god, Willow wrapped her legs and arms around his well-built body as he began to thrust once more. So far, she really liked this plan.

-x-X-x-

Walking into the place she shared with Willow, Tara felt like she'd physically walked into a wall as Xander's musk hit her. All the windows and door had been closed during Xander and Willow's marathon fuck fest, leaving the air stagnate with the smell of sex. But sex with Xander did not create normal sex smell, no, it created so much more. Tara stumbled and almost fell to her knees as she was beset by unnatural pleasure and lust, her body quickly growing aroused against her will.

The blonde's pussy began to moisten even as a familiar female voice called out and Tara found herself bound by magic, her lips sealed shut so that she could not fight back with her own spells. She was floated through the air into the bedroom and through bleary eyes Tara could make out a naked Xander and Willow in front of her.

"Willow… what… what are you doing?"

Her clothes flew off of her in a flurry, causing the bound blonde witch to yelp in panic as she was stripped down to her birthday suit and then forced onto the bed, face down ass up. A moment later Willow's familiar cunt, attached to her familiar body, settled down in front of Tara. Straining to look up, Tara could only see an evil smirk on her lover's face as the red head grabbed Tara by her blond hair and pulled her face in close.

The moment her lips touched Willow's lower lips Tara found that she couldn't resist any longer. Her tongue flicked out and she began to lick at her lover's pussy as she'd done so many times before. This time there was desperation to Tara's actions though. She hoped that giving Willow what she wanted would see Tara receiving some relief of her own. The witch got her wish, but definitely not in the way she wanted.

Feeling the tip of a warm very real cock press against her own exposed wet pussy, Tara's eyes widened and her body stiffened. The lesbian had never been with a man before. Sure, she'd broken her hymen to dildos and sometimes she and Willow played with a strap on, but as Xander thrust into her, Tara still felt like she was losing something, an involuntary gasp escaping her mouth as he filled her up.

Her treacherous cunt was more than ready for him, but then her body had started preparing to be bred the moment it cost a whiff of his musk when she walked in the door. Tara was powerless to resist as she was sandwiched between the two, her red headed lover and her red headed lover's best friend and former crush. All Tara could do was squeal and kick her feet in the air uselessly, her shins and thighs bound together to force her legs up by Willow's magic.

Her ass soon grew red from Xander's thrusting, his body leaning over hers and his flesh slapping against her own with each thrust, driving Tara's face deeper into Willow's gushing pussy lips. The blonde's eyes rolled back in her head as she came and came hard, muffled moans escaping her lips. Willow's hand curled in Tara's blond hair and she ground against Tara's lips as she came as well, her lover gushing all over her face.

Xander wasn't nearly as easily satisfied, and his thrusts continued long past the moment where Tara broke, even without his cum having finished the process entirely with her yet. When Xander did finally release inside of her, it was almost a relief, her poor pussy incredibly sore by the end. Then, his seed did its work and Tara's mind melted as she realized how foolish she'd been to ignore the god in her life for so long.

When Xander pulled out of her pussy and Willow undid the magical bindings on her, the first thing Tara did was spin around to take his softening cock into her mouth to begin cleaning it off. In an instant, Willow was beside her, pressing up against her while they kissed and licked and sucked Xander clean together.

Then, the two of them turned and kissed deeply, their hands coming up to wrap around one another as they aggressively made out, half a show of love, and half a show for their god in male form, Xander Harris.

-x-X-x-

They were still kissing a while later when Xander decided he was ready to go again. The demonically enhanced man pushed the two witches onto their hands and knees so they were lined up before him on the bed and then reached out and fingered both of his newest sluts, smirking as they moaned into each other's mouths at his ministrations. Tara and Willow had their faces locked together as they kissed, but that didn't stop either of them from shaking their bubbly asses in his direction enticingly.

Eventually, Xander chose his target. Lining up with Willow's dripping wet cunt, he thrust into her from behind, drawing a happy startled muffled yelp from the girl and a disappointed whine from Tara. He reached out and thrust four fingers into Tara's needy cunt as he fucked his childhood friend from behind as a sort of consolation prize, and given the way the blond witch was humping back at his hand, he rather thought she approved.

Still, Xander didn't intend to spend all of his time with Willow anyways, and after a dozen thrusts, he pulled out of her and moved on, pushing into Tara and thrusting his fingers into Willow this time instead. The girls moaned wantonly into each other's mouths and as he continued to fuck each of them for short periods of time, both of the mind broken witches came around his cock, making more of a mess of the bed beneath them then there already was.

But Xander wasn't totally satisfied yet, and eventually he came up with something that he just had to try. Pulling his hand and cock out of his love slaves, Xander grabbed them both and positioned them as he wanted. They went along with his every whim, but did their best to continue locking lips while he moved them around. Soon enough, Tara was laying on her back while Willow lay over her. Their breasts were pressed against each other. More importantly, their pussy lips ground against each other too.

It was this joining where Xander pushed his huge thick cock, sliding between the two pussies with a pleased grunt and beginning to thrust away in the tight space between the bodies of the witches. Willow and Tara ground down on his cock with their cunts, writhing against his length as they moaned happily, until finally Xander could no longer contain himself. His seed came out in huge blasts, painting the space between their bodies in white until he was finally done and stepped back, panting.

Both of his new pet witches immediately got to work licking the cum off the other's body, their make out session turning into something even more perverted as they gave each other a full on tongue bath, desperate to taste more of his cum and going into the smallest crevices on one another's bodies to find it. Xander watched with a satisfied smirk on his face, collapsing into a nearby chair and sighing happily as his spent body began to shut down to recuperate.

-x-X-x-

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