Written by Messorem (borrowed parts from writer of ordinary xeno)

Will probably be the most challenging of quests to reach for players who play without the "play on" command and can only find and enter the hive without being swarmed by hundreds of xenos while being at level 25 (can be lower if it is too high) and being a pure xeno and I will only write the sex scenes if Valente gives me the go ahead to continue writing the stuff, and I may as mentioned above have borrowed some features from the ordinary xeno in the game to keep up with consistency.
There could be incest involved with Xera and Xoor as they are your twin firstborn xenos after a exceptionally fast pregnancy unless Valente disagrees, then they will have a background of being Xanaria's Twin firstborn and until that is decided the xenos will not have any dialog.

NPCs involved:
*Snow
*Xera (female)
*Xoor (male)
*Xanaria (Herm)(Hp : 250, Average attack damage: 40)

Quest will start after being a pure xeno then after beating several up several xenos then you will be prompted with this notice:
You ponder where these creatures are coming from and resolve to find out where and how such an infection could have sprouted and maybe put a stop to it.

Hunting for the "xeno hive" whilst near the capitol hunting area will give the player a chance to find the xeno hive and while the player can be in the starting room without trouble but if player is of insufficient level the xenos at the "hive entrance" will say that the player is not worthy of meeting the queen and will transport the player back to the starting room and if the player is not a full xeno then the xenos in the "hive entrance" will be alerted to the players scent and will send a literal endless wave of xenos and will not stop until the player flees but meeting both requirements while trying to go north from the "hive entrance" will make the xenos let the player into the hive, allowing you access to the queen.

Hive rooms:
* Hive scenic view (start)
* Hive entrance (place of judgement, north of scenic)
* Dark Hall (not really special, north of entrance)
* Nursery 1(area with Xera after becoming queen)
                  (west from hall)
* Nursery 2(area with Xoor after becoming queen)
                  (east from hall)
*Queens Chamber(area with Xanaria before and after fight)
                             (area with royal jelly pool)

Going into the Queens Chamber and talking with Xanaria will prompt either a dialog with her or an offer of vaginal sex which you can avoid if you want and continue talking with her but if you accept then the next offer that she gives you is unavoidable unless you want to fight her, after the fight you can choose to either have sex with her and get transformed with all the rewards but no extra feat or leave her there whilst looting the place of its food, water, techno goodies and gain an extra feat.

(Will obtain infection each time you bathe in the royal jelly in the queens room unless you play as a researcher then you will just obtain a vial of Xeno queen nanites else you will fully transform upon defeating and dominating the Xeno queen which fully transfers your Xeno nanites with her Xeno Queen nanites which in turn gives you a snazzy little reward of a red colored Xeno slave and two black Xeno servants to tend to your needs of which the red one is a herm and the defeated queen and the servants are one male and the other one female, and predator class defense and artillery found on the body of a strange skeleton, which only slightly resembles the weapons and armor of the franchise and should not be taken as an exact description of what it looked like or how it was used in that same franchise and thusly shouldn't be a target of hardcore fans of the franchise to make a mockery of above mentioned xeno queen,xenos and predator items.)
(If defeating the queen and not choosing to dominate her will end the quest-line and leave the hive empty and dead leaving the player with the loot but no access to the Xeno Queen infection or the xeno servants and the royal jelly pool will be drained and empty but will give you a feat that permanently maxes out your sanity)

Transformation:
*Head
Your head aches as it is wrecked by an intense head-ache and you feel your brain enlarging, your skull elongating and curving backwards while your teeth elongate, sharpen, and become silvery whilst you feel your gums become non-existent and your throat elongates as it gains teeth of its own and can extend at will. You think the changes are over but suddenly your forehead aches as a magnificent crest with regal patterns start forming.
*Skin
Your skin suddenly feels dry as it becomes hard and forms a black insect like carapace which quickly molds against your bones but you still retain your muscles who turn a slight green with not a single trace of fat left on your body.
*Tail
Your lower spine aches as your suddenly feel a long appendage emerge from just above your ass, looking really bony with vertebrae that stick out as your skin forms tightly around it and forms a foot-long double bladed tip at the end of it, you find it surprisingly flexible as it lacks any visible muscles. Your ass also plumps up a little to ensure that your ass isn't that bony as the rest of the xenos.
*Groin
Your groin feels oily as it reshapes itself into a black protruding ebony shaft and forms inch-long tendrils at the tip and base, between the tip tendrils you find a vagina like opening which confirms your suspicions that it is now an ovipositor and your body now make space for the countless eggs that will be traveling through it, a quick check reassures you as you still possess female anatomy.
*Body
You struggle for air as you feel your windpipe elongate but thin out and move towards your back while forming breathing tubes on your back and finally gasp as you draw air into your new lungs. You feel a slight sense of vertigo as your spine and legs extend and twist in odd ways which thankfully unlike the queen you fought still keep you in an anthropomorphic form and enable you to stand upright and as you feel your hips growing slightly wider your ribs and arms feel like they are set ablaze as pain wreaks havoc upon your nerve system, as your ribs become less and you feel a second set of arms and shoulder-blades split of from your originals, leaving you with two twin sets of long arms and find them quite agile and easy to control and think of how much easier everything else is going now that you have four powerful arms. The changes aren't done yet, as you feel your toe and fingernails get itchy and then elongate and change color into silvery claws which look quite fearsome and you move quite silent despite them, testing your new body you find that on two legs or all six apendages you are moving as fast, agile and silently as ever and perhaps even more-so.

Pure Xeno Queen self description:

Looking over yourself, your body is covered in a hard insect like black exoskeleton carapace. Your face is a thin elongated skull that curves backwards towards the top, unlike a normal Xeno you have a crest like crown starting at your forehead and spreading backwards across your skull in regal patterns and you constantly here faint wispers as your connection to the xeno hive is telekineticly linked to your queen mind, making you feel motherly toward your fellow xenos. Your eyes are large black orbs encased in sunken sockets. You have no gums and your teeth are silvery, long, straight and densely packed in several rows. Behind your first mouth is a second smaller mouth able to extend out your black tongue which is also attached to your throat and has smaller but equally fearsome razor-sharp teeth. your body is quite large, even for a xeno and you'd figure that if you crouch down then you could go through all but the smallest spaces, but oddly enough you can see your skin fold around your ribs and bones as it forms an exoskeleton. Your animal like body is very feminine, which unlike the queen that you fought allows you to walk upright with noticeable hips and curves that most women would envy you for but is still a little bony as the exoskeleton forms around it. Your breasts, heavy with milk, leak a green acid with each bounce, concerned about your lovers you quickly spit and smear some fluid on a piece of paper you found on the street and find that it is not as acidic as your milk. As you examine your breasts you can easily see green blood vessels running along your breasts that converge upon your nipples. Unlike other xenos you have four long, thin, slightly muscled arms and two digitigrade legs which end in long razor-sharp claws and despite them you still move as silently as ever as you find that walking upright or on all six of your appendages suit you fine. From your back grow breathing tubes take take in air for you. Your cock extends like a hard phallic probe with inch long tendrals at the tip. Encircled by these is a wet vaginal opening to complete your ovipositor. You thankfully have a normal, [cunt size] pussy beneath your cock as well, allowing you to enjoy a good fucking as well. You have a long tail consisting of many vertebrae but completely absent of muscle. It hovers behind you swinging this way and and way but you find it easy enough to control if you want to use the twin bladed foot-long tip to injure your enemies.

(since the queen is larger than the average xeno, here are some measurements that the infection will give you to suit a xeno queen)

Cocks will be an average of 20 inches
Balls are an average of watermelon sized
Vaginas will be an average of 50 deep and stretch to 30 wide 
Breasts average at 10 which the largest curve average 12 inches

(And unless the public wants the births to be lore-friendly and by that I mean gore-friendly in their xeno births the xeno queen infection will make you lay eggs with the offspring inside instead of a alternate birthing scene when you instinctually hunt for other creatures to use as incubators which will either be huskies,german shepherds or hermaphrodite gryphons then lay facehugger eggs then wait beside their catch for the entire process to be completed which will take up to two game turns which by my estimates are about 6 hours.)

Gauntlet Weapon Description:
A 18 damage weapon, 20 if upgraded by snow
(made higher by feats, strength and perception)

Looking:
You look over the strange gauntlet that you have found at the hive and find it to be made out of an element you don't think is of this world with small claws at the fingertips and has a jet black finish, with intigrate markings and numerous buttons with symbols that you have figured out that each of them resembles some kind of weapon as it always hums after battle, meaning that it could be self recharging and seems to form ammo from the molecules in the air.

Smelling:
You sniff the gauntlet.
The gauntlet smells metallic and faintly reminds you of the hive.

Using:
You slip on the gauntlet and find that it fits you like a glove, seeming to change its form in order to suit your current infection's hands.
You stop using the gauntlet which as soon as it comes off changes back to its original humanoid clawed shape.

Battle:
You use the blade function, charge at your enemy and make several slices before stepping back.
(default damage 16, 18 after upgrade)
You use the harpoon function, making sure your enemy is distracted, you fire a foot long harpoon into their shoulder or limbs
(default damage 16, 18 after upgrade)
You use the gattler function, aim and let fly a flurry of bullets which makes your enemy dodge but not before several of them pierced their body.
(default damage 18, 20 after upgrade)
(Critical)
Feeling powerful you use the plasma function, holding your hand out to your enemy they try to prepare for what comes next but cannot dodge it as they are hit by surprise when a ball of energy forms in your hand and flies with lightning speed directly into their central body mass.
(damage ranging from 25 to 50, maybe much higher with upgrade)

Hunter Armor Description:
Neglects 4 points of damage, 6 if upgraded by snow

Looking:
You look over the armor you've found at the hive and find it to be very light being that it is now only a circular pod shaped device with a glowing red light at the center which once put at your chest contorts all over your body until it covers everything except from the neck up and is skin-tight but not uncomfortably so, you know that once it is put on the armor has a silvery black finish with shoulder pads,it is almost seamless with the segments of armor being connected at the joints with interlocking plates and seems to mold open at your chest and groin to allow for fun times.

Smelling:
You sniff the armor.
It smells metallic and faintly reminds you of the hive.

Using:
You put the pod against your chest and feel a chill up your spine as cold metal forms around your body perfectly and as you get used to it, it almost feels like a second layer of skin.
You touch the red panel at the center of your chest for a few seconds until it lets out a beep and the armor now flows pack into a pod like form, jumping of your chest as you catch it in mid-air.

Hunter Mask Description:
Neglects 2 points of damage, 4 if upgraded by snow and acts like the face mask found in bunker.

Looking:
Looking over the helmet you find it to just be in a mask form now but as soon as you put it against your face it molds into a skin fitting metallic mold and even seems to cover strands of your head hair in a dread-lock like style and will interlock with the metallic mold of the hunter armor with the exception of your eyes being protected by seemingly unbreakable glass and your mouth covered by an armor like air filter which allows for breathing and filtering of unsavory scents. Once it is on it has a almost miss-able button at the underside of your chin to let you take off the mask and will flow away from your face if you decide do eat or do other things with your mouth.

Smelling:
You sniff the mask.
It smells metallic and of your sweat but changes to a stale, almost sterile smell once you put it on.

Using:
You put the mask against your face and feel a chill up your spine as cold metal forms around your head perfectly and as you get used to it, it almost feels like a second layer of skin.
You touch the button at the underside of your chin for a few seconds until it lets out a beep and the headgear now flows pack into a mask like form, jumping of your face as you catch it in mid-air.

The next bit is only going to be in if it is possible to make upgrading these items a item gathering quest without conflicting with the other items in the game.
Upgrading Weapon and armor:

Snow will have her own little quest for you each time you upgrade one of these items which will require you to gather several items that she'll need in order to work with something of this calliber.

The Items are as follows:
*2x silver semen
*1x acid milk
*1x visit to the junkjard for parts
(activated by new "High-tech scrap" event)

Upon trying to upgrade items snow will reply with:
"Oh, you want me to fiddle with something?" Snow says while pulling out her toolbox but when you show her the item in question she examines it for a while before putting it back on her table and scribbles down a list of things then holds it up to your face and after you read it and put it on the table you ask her why she needs these things. "I'm gonna need some things in order make this better for you cause what you have shown me is of a higher tech then what i know and from what I can gather it uses some very specific key elements in the bonding agent of the metal it uses and i can't go to the capitol area without barely making it back alive..." and after some deep thought she says with a reassuring tone in her voice "But I'm sure someone like you can gather these items without more than a scratch." and with that you gather your things and leave Snow to her own devices.
Remembering what was on the list you run them through your head:
*2x silver semen
*1x acid milk
*1x Higher grade parts

And once you have the items you should talk to snow again:
Snow says "Thanks, i'll be back in a minute" as you watch her go into a back room with the requested items and after a while of waiting she comes back, gives you the item and says "That thing is incredible, I can't wait until you bring me another one!"

The High-Tech Scrap event:
As you wander through the junkjard you hear a strange humming with is not much different from the sound the gauntlet makes before smacking face first into an invisible object from which you stagger and give quickly hushed "Ouch!" while rubbing your forehead, but someone closeby has heard you and you resolve to fight this creature first and then afterwards deal with your head-ache.
(random junkjard enemy fight)
After you drove of the creature your head is still a bit sore but on the bright side your impact seems to have disabled the generator to make the object invisible and upon closer inspection it seems to be a obelisk of some kind sunken into the ground of the same tech as your newly acquired arsenal and after some fiddling you salvage as much as you can from the object leaving it empty and know that Snow will be very happy to have some fun with some higher tech.

Endings:
+Ended with humanity
As the military came and went you knew that you and your kin's monstrous forms will only make the military want to try to nuke the entire region until they are certain that nothing is left alive and so have waited underground and moved the central hive to an island cause you know that should your plan succeed under california all of your loved ones will die, scavenging what you can while letting your hive tend to your needs and in turn you shower them with love and the promise seeing a promised land where your kind will never be outcasts but rather the precursors and founding fathers of a civilization powerful enough to rival the galaxy while your hive expands underground across the world. But just as you're about to lose hope for yourself and your everloyal hive one of your smarter reconnisence drones comes back with a formula for everlasting life and the blueprints to a spaceship that the leading space center of the world was prototyping but classified both as a failure but you with your massive brain power quickly find and correct the flaws in their formula and blueprint and quickly mix the formula and after drinking it you feel your youth coming back and you order most of your hive to include in the scavenging list any parts that can be used in the ship and after months of work, the ship is finally finished with a few modifications to allow your entire hive passage. The day has come, the hive is ready and with you in the cockpit you start the engines and watch as the entire world shakes with news as a mystery object lifts up an entire island into space and beyond. As you're reaching your final destination you order your hive to stir out of hibernation and get ready to land on a planet full of life not above but underground, after the landing
you watch with an unending gaze as you become the mother of all queens and xenos and your civilization thrives on this dark planet with cloud scraping towers of ebony across the entire planet and bustling underground urban city hives all under your control as you ponder the next suitable planet you shall conquer.

+Ending without humanity
As the military came and went you knew that you and your kin's monstrous forms will only make the military want to try to nuke the entire region until they are certain that nothing is left alive and so have waited underground and moved the central hive to the dead zone of Washington DC, scavenging what you can while letting your hive tend to your needs and in turn you shower them with love and the promise seeing a promised land where your kind will never be outcasts but rather the precursors and founding fathers of a civilization powerful enough to rival the galaxy while your hive expands underground across the world. But just as you're about to lose hope for yourself and your ever loyal hive one of your smarter reconniasence drones comes back with a formula for everlasting life that the leading science centre of the world was prototyping but classified it as a failure but you with your massive brain power quickly find and correct the flaws in their formula and quickly mix the formula and after drinking it and feeling your youth coming back you order your hive to mobilize and gather as much metal as possible without rousing suspicion and teach several of your drones how to smith and pretty soon your entire hive was fortified with power armor and the same gauntlets that you have but less powerfull so you can remain supreme. As soon as your influence has expanded underground across the globe you muster your entire hive to burrow up and slaughter every last human but leave california alone as you still retain some vestige of a memory of someone you care and love for. You watch as your race drives mankind to near extinction and the only other sentients are the ones in left alone in california and you become the supreme ruler of the world, but something still feels empty inside you as you keep pondering why you left california alone and you have to deal with that emptiness for the rest of your enending life.

After typing this i feel like my X button needs a replacement.