Disclaimer: as it really goes without saying; I do not own any rights to BtVS, Mass Effect, Terminator or any other professional fiction and/or franchise that may or may not crop up within this story. I own a laptop and my meaningless time that was used to cobble this idea together.

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This story takes place excursively in the Mass Effect universe which is separate to the BtVS verse.

This is built upon the story inception idea of YAHF with a small twist as to how Xander exactly 'benefits' from his Halloween possession.

Note:

A.I – Artificial Intelligence.

V.I – Virtual Intelligence.

XxxXxxXxxX

2025 C.E

Xander beamed widely as he felt the warmth of the evening sun on his skin. Both the act of physically smiling rather than simply digitally manipulating an avatar to do so as well as being able to feel external stimuli. He had felt a wash of emotion that had even triggered his bodies tear ducts when he had showered and dressed himself and been able to actually and completely feel the cold water that had pebbled his light blue skin and even caused his bodies nipples to harden in response to the cold.

It had been a momentary amusement on Xander's part when he acknowledged the fact that he was playing the part of a woman with his Asari designed T-900. While he did still identify himself as with a male gender role; the idea of taking female form was so small a thing it was practically inconsequential.

He had chosen to take after his new mother in adopting her own fashion style and clad his form in a long dark purple dress.

Physically he looked to be a young Asari in her late teens. Choosing the physical age based upon of how compared to an Asari's own incredible life span; he himself was still no more than a child to their eyes. He had a light blue skin tone with the same purple eye color as Benezia and a faint dusting of dark blue 'freckles 'covering his nose and cheeks.

He wasn't particularly vain or concerned about overly sexualising his body and so had a moderately sized bust and small but rounded butt.

Currently he was in the process of fulfilling the promise to his mother in visiting her. He hadn't said anything about completing the power cell needed to complete the project for the specific reason of wanting to surprise her so was looking forward to the reveal.

So here he was, taking in the sunset on Thessia; technically the first alien planet he had ever set foot on. It was beautiful. Filled with incredibly beautiful women and filled with a stunning cityscape of elegant buildings and flowing waterways and gardens.

Being granted permission to land had been an easy enough affair; the traffic control affording him some consideration when he had declared himself as Alixanda T'Soni. It seemed that Benezia had taken the time to register him as her 'daughter' with the Asari governments citizenship register. Curiosity had compelled Xander to look into the act and found that Benezia seemed to have called in a favor or two to have 'Alixanda T'Soni's' existence back dated to his 'birth' as an A.I in 1999. an extracted video log allowed Xander to hear his mother lay claim to the excuse that she had fallen into her work too deep and become absent minded in registering her daughter's birth.

All in all, Xander loved the gesture and sentiment. In Sunnydale his human parents Tony and Jessica Harris were not ideal or even attentive parents. Tony had been degrading and verbally and emotionally abusive and Jessica had been a drunk that had resented her lot in life and seemed to take it out on him.

It had been largely why he had latched onto Benezia so readily when she had voiced her affection for him as her child. Ever since she had found him hiding in that room and taken him away; cared for him. Loved him.

What else could he do but love her in turn.

Xander had the information he needed to find where Benezia's residence was locate; the woman in question having messaged him the location details shortly after their meeting the previous year. But he was in no hurry. The young 'man' was indulging in the enjoyment of being out in the physical world once more and being able to feel the sensations involved; a thing that he had been determined to regain when he had designed the T-900 and living tissue.

Still smiling brightly, Xander watched as the sun finally dipped below the skyscraper dotted horizon. Turning from the railing he had been leaning against with the intention of exploring more of city and experiencing the culture and sights.

He was so lost in both the sights of the Thessian city around him and the allure of sensation that he didn't notice the uniformed Asari until he had knocked into her.

The impact was a solid one and while Xander was able to remain on his feet; his body far too weighted and solid to be knocked down by anything short of a charging Krogan; the poor woman that he had walked into was knocked solidly to the ground.

Cursing under his breath, Xander hurriedly crouched down and helped the older woman to her feet; quickly scanning her body for any sign of injury. Like what seemed to be the norm for the species; the Asari was stunningly beautiful. A lot older than his current form looked; possibly around a similar maturity to Benezia. Clad in a military uniform of dark red and black leathers she had light blue skin and a pattern of yellow facial markings surrounding her eyes.

"I'm so sorry. I wasn't paying attention to where I was going, are you alright?"

The Asari shook her head to clear her thoughts; disorientated from the slight yet solid collision. Xander couldn't find any sign of injury. Scans showed no broken or fractured bones. No abrasions or broken blood vessels that would lead to bruising. He quickly got to fussing over the woman; gently holding her to make sure she wouldn't lose her footing.

"It-it's alright. I'm unhurt." The Older Asari finally spoke up, opening her eyes to look over to the dress clad young Asari at her side. "I think the last time I hit a creature so solid it was a Krogan."

Xander's T-900 body responded automatically to the emotional response that Xander felt as his cheeks purpled in a blush. "I'm sturdier than I look."

The uniformed Asari cocked an eyebrow in amusement before gently removing herself from Xander's unconsciously still present grasp. "Apparently so. Do you have a name child?"

"Alixanda."

"Well then, considering the circumstances, it is a pleasure to meet you. I am Lidanya."

Xander's eyes widened as a quick search through the Extranet revealed a news article that detailed the Asari Dreadnought Destiny Ascension had received a new commanding officer; Matriarch Lidanya to take up the helm of the largest ship in the galaxy.

"Matriarch Lidanya. I would have thought you'd be on the Citadel."

Interestingly enough, the Matriarch blushed at the recognition; apparently not quite used to the awe and recognition that was coming with her prestigious assignment. "My assignment isn't due to start for some months. I'm on vacation until then. What brings you here Alixanda? Apart from knocking people over of course."

Xander felt his cheeks warm once more before shaking his head and straightening, shifting his body posture to look more at ease and less nervous. "What makes you think I'm not from here at all?"

Lidanya smiled indulgently and looped her arm in with Xander's and started to lead the young Asari down the walkway. "I don't think I have ever seen a local in the many centuries of my life, knock into people because they were so busy gaping at the surroundings than were they were going. Don't you?"

Xander grumbled under his breath and nodded reluctantly. "Fine. I'm mainly here to visit my mother. This is my first time on Thessia so I got a bit lost in how beautiful this place is."

The Matriarch nodded in understanding, peering over to the young Asari; mentally cataloguing relative age to be in the early decades. It was understandable that she had been distracted. Lidanya herself could still remember the first time she had visited the Citadel as a Maiden; it had been very similar.

"Where are you originally from then?"

"Illium. I live and work in Nos Astra." Xander answered; trying not to focus on the warmth that he could feel from Lidanya's arm that was looped in with his. "I promised my mother last year that I would visit the moment I could step away from work."

Lidanya smiled and patted Xander's arm in support. "That's good. Making time for family is always wonderful."

Xander nodded in agreement. He walked alongside the Matriarch for a moment before looking down to how the woman was still holding his arm. "I there a reason why you're still holding onto me?"

The Older Asari smirked in amusement and tightened her hold. "Well considering how you so rudely knocked me over; I'm making sure you don't run off before you have a chance to repay me."

Xander paled. He didn't really think that she had taken offence to his accident. Was she going to be pressing charges and was making sure to keep from running off until the law enforcement could arrive. She was not only a Matriarch but highly placed in the Asari military after all.

"So I'm not letting you out of my sight." Lidanya's grin widened. "Until you have bought me a drink as apology."

XxxX

Well it would seem that Xander had discovered the first limitation in his designs and programming. He had not accounted for the kind of chemical transfer and intake needed to experience intoxication. He was in the process of carrying a near catatonic Lidanya home from the night club the Matriarch had dragged him to.

While he had started off buying drinks to make up for his bumping into her; seeing the little woman down enough alcohol to kill a Salarian without even showing the slightest indication of even a buzz; Lidanya had taken it as a personal challenge.

The Matriarch and soon to be Commander of the Destiny Ascension turned out to have been quite a booze hound from her Matron and Maiden days. She had shared an awe inspiring story of how centuries ago to celebrate her acceptance into the Commandos; she had gone on an interstellar 'club crawl' with some of her closest friends. Starting in Thessia she and twelve others had drank their way across Asari Space.

And so Xander's in ability to get intoxicated due to him having not accounted for the eventuality had been misunderstood and so Lidanya became determined to find the limits of what she thought was an impressive tolerance.

Needless to say the Matriarch had failed. Xander had finally decided to try and preserve the woman's dignity when she had started to try to come onto him; running her hands along his arms and whispering things to him that would have had human Xander pass out from how incredibly erotic they sounded.

Xander had to drag the Matriarch from the club and start to ferry her home when she had started to get extra handsy. He didn't want her reputation to get tarnished if if ever got out of how she engaged in public sex in the middle of a popular night club with an Asari Maiden. Thankfully, she had passed out shortly after he had pulled her out of the club and Xander was now walking into the large apartment mega structure where Lidanya lived with the woman slung over a shoulder.

He had pulled the records of Lidanya's home address while leaving the club and after the woman had passed out in his arms.

Catching the building's lift up to one of the top most floors, Xander was easily able to hack through the security protocol's keeping the penthouse secure. It was an easy explanation to cover his entry when she woke up; with her level of intoxication she wouldn't likely remember much after a certain point and so it would be an easy sell to explain that she had been aware enough unlock the door.

Remotely accessing the door controls again to close it behind him, Xander navigated the penthouse easily to locate the bathroom. The layout followed standard formats for these kinds of buildings on Thessia according to information he could access and so when he located the bedroom to be exactly where he thought it was; the disguised A.I carefully lowered the unconscious Asari onto the silk sheets.

Crouching down he unlatched the clasps on her boots and slipped them off Lidanya's feet before placing them to the side of the bed. He wasn't about to even consider removing her clothes and finding some nightwear for her.

He made to leave when Lidanya's hand suddenly latched onto his. The woman was certainly making a habit of touching him.

Looking down he saw that despite the odds, the Matriarch had half woken and was peering up at him with unfocused eyes, her other hand flicking at straps on her uniform to begin the process of removing it.

"W-where do you think yeeeer going?" She slurred, loosening and sliding her top off; revealing probably the single most perfect pair of breasts Xander had ever seen outside of pornography.

"You're drunk Lidanya. I can leave my comm number if you would like to talk when you sober up, but I am not doing what I think you want to do." Xander was thankful that he had managed to not stammer despite the impressive blush on his cheeks at the incredible sight the Matriarch was providing him as she started to try and shimmy out of her pants; a feat made harder by the fact that her other hand was still clutching Xander tightly..

"Anya. I tooooold you to call me Anya. AAHN ya!" She grinned cheekily. "And it'll be fun. I can teach you soooo much."

Xander thanked whatever higher power was watching over him that his conversion has provided him with a far stronger will over his baser desires to be able to resist such a sinfully arousing sight. Ignoring the blessing that he still had desires at all.

"I-I can't. My mother would be very disappointed in me if I did." Xander looked down in shame to finish the act. It was a bit of a cheap tactic; playing the naive mommy's girl, but it seemed to work.

Lidanya seemed to sober; no where near enough to not be considered absolutely trashed, but enough to realise the discomfort her young companion was showing. "Then at least stay the night. No fun. Just sleep. You're sooooo warm!"

It would have been as easy to break Lidanya's grip as if it were cheap glass. But while he had the strength not to sleep with a drunk woman and explore just how much pleasure his body could receive. He had a touch more difficulty shrugging off the offer to sleep in the arms of a naked space succubus.

Xander slipped off the dress and climbed into bed, strangely enjoying the pleasant shiver than ran along his skin when Lidanya kissed at his neck before wrapping her up in a tight yet comfortable embrace.

"Night Night Alix." The Matriarch cooed; testing the limits of his comfort by brushing the palms of her hand against his nipples and cupping a breast as she nuzzled into the crook of his neck.

"Sweet dreams Anya."

XxxXxxXxxX

Author's Note:

Xander's first Terminator model is the T-900; the model Cameron was from The Sarah Connor Chronicles. I chose this model as it is smaller in size to the T-800 and is more capable of expressing emotion and sensory input which allows Xander to feel things like warmth, wind and even pleasure like an incredibly hot Asari cougar necking him.

For those of you familiar with the games. Matriarch Lidanya was the Commander who was in charge of the Destiny Ascension in Mass Effect 1. I figured at this point of the timeline where Xander bumped into her she was in the process of getting that appointment.

For those who have issue with Xander being so easily lead around despite being a badass Terminator I will point out that despite everything Xander is still that guy who in BtVS once said to Cordelia "Looking at linoleum makes me wanna have sex."

As always. Review if you feel like it. Just please be gentle.

I am open to reviews and/or PM suggestions over ideas for Pairings for Xander. while i am partial to any pairing that involved Tali; there is the A.I/Quarian barrier that can make it highly unlikely.

So far the only solid NO in the pairing options is Liara. for reasons many will already have figured out.