Leave her

"I'm sorry, Miku..." You think to yourself. Sacrificing yourself would be stupid. If you picked her up, you would be shot for sure. The important thing now was to get out of here. You could always transform yourself into Alex at a later point in time.

You make a dash for the end of the hallway, but suddenly, you feel a dart in your back.

"Urk!" You exclaim, and you fall straight to the floor. A second and third dart hits your supple buttocks, and your vision fades at a rapid pace.

"We... Were so close..." You think to yourself and you drift off into dreamland.

...

You wake up, and feel something against your boobs. The moment you open your eyes, you're met with the distraught grey eyes of Cynthia, about two inches from your face. You immediately try to move your head, but find that it's attached to hers. You use your eyes to look around instead.

You're completely strapped in with her, and everything up to your head is covered in a strong latex sheet. Your legs are doing the splits, and your pussies are touching one another. Your breasts and mouths are touching as well, your heads strapped together with leather, and your arms are wrapped around each other in an embrace.

You're in a lab, on top of a transformation machine. It's very different from the one's you've seen before, as it's horizontal to the ground instead of diagonal, and it's four times the size.

Alex was nowhere to be seen. You try to wriggle free, but all you succeed in doing is shaking Cynthia's warm saliva into your mouth, and grinding up against her. Your body shudders. Though you hate to admit it, being this close to Cynthia naked is making you quite flustered and wet. She looks into your eyes with a worried expression. You're not sure if she noticed your fluids, or if she too was feeling turned on.

A minute later, the door to the lab opens and in waltzes Alex herself. Carrying a clipboard with her, she walks over to the nearest computer desk, right in front of the machine, and sits down.

"Do you two know why you're here today?" She asks in a frightening voice.

"Bleclush ou IDNARPPED oujsh!" You respond, your tongue lapping the inside of Cynthia's mouth.

"You are here because you are BAD girls." Alex replies coldly. "Bad girls who just HAD to try and escape on the day I was meeting with the second biggest client of the year. And you know what? Turns out, clients don't like it when girls try and escape... They think I'm too soft on you. They think you're poorly trained, or that you're to rebellious, and might turn against them! They think you're DANGEROUS!"

Alex slams her clipboard on the desk.

"I've had enough. I've had enough security breaches because I was TOO NICE on you girls. I'm fed up to the brim with this kind of behavior, so I'm making some changes.

First off, collars are now mandatory for all test subjects. Second of all, test subjects will now live in private cells instead of an arborium. And finally, ALL staff, test subjects and maidens will be shown what becomes of those who oppose me! Take a good, long look at what's become of your treacherous friends!"

Alex flips her monitor around and shows off an image containing pictures of pink, fleshy abominations. Each of the pictures has names under them.

C.C. and Erza have both become fleshy boob spheres connected by a dick-like tube.

Miku's head and arms have been replaced by a massive cocks, and Zelda, Rem and Ruby have all become part of her oversized, immobile ass.

Rei and Filia have been merged together at the waist, their arms removed, and their mouths replaced by vaginas.

Noel had her breasts and ass switched, as well as her crotch and face.

You feel like throwing up. Alex turns the screen back around and glares at you and Cynthia.

"You two can be my newest tentacle monster." She states. "I don't even feel like watching. I'll send someone to toss you in the pit when the process is done. Adios."

Alex types away at the keyboard, and the latex covers your heads. It binds tightly to you, forcing the two of you to get as close as humanly possible. Cynthia whimpers and tears run down her eyes as the two of you begin to metamorphosize in complete darkness.

You're pushed up harder and harder against Cynthia until you feel like you're being pushed into her. Then you realize that's exactly what's happening. You feel your smashed breasts start to give and relax as the spring INTO her body. Your lips stick and then fuse together, turning the two of you into one long tube. As your mouths squish together more, you can feel your tongues start to merge as well. Your legs and cunts start to meld into one another, and you feel Cynthia's warm juices gush into your vagina.

"She's... She's really turned on by this..." You think to yourself. You hadn't noticed it because you'd been so occupied by fear, but you feel REALLY good right now. Your flesh and skin feels like bliss, and the fact that Cynthia's warm spittle and cum is in your body makes you feel more and more flustered the more you become aware of it.

Something gives and you slide into Cynthia another centimeter. You feel a surge of pleasure in your loins and you let out a short moan. Your abdomen twitches and you release your own cum into Cynthia's cunt. Though, it might be fair to call it her side, as your vaginas were now perfectly connected.

Though you were feeling pleasure now, the next half an hour can only be described as mind-destroying madness. As your midriffs fuse together, you feel your stomach and intestines shoot into her body cavity. Your guts attach to hers, forming an unnatural tube maze of flesh. You feel your bones soften and your feet round out. Her legs and your legs become one, turning into the beginnings of your tentacles. Your lungs and heart fuse into larger, single versions, and your skulls start to soften and break apart as your faces completely merge together, forming a single head with four ears and blonde and brown hair.

Words, and even thoughts escape you. You're unsure whether to moan in pleasure or scream in horror. You feel your arms lose their bones and soften into tentacles, your asscheeks split apart and become another pair as well. You feel your softening spine shorten and your torso begins to retract into a lump of flesh that will become your main body. Your digestive system is no longer your own, as is your flesh. Your nerves have connected to Cynthia's and now you can feel her body as well. She can no doubt feel yours in return.

"I'm fading..." You think to yourself. "Who am I? May? Cynthia? Both?"

You feel your body lower even further, and your tentacles thicken. Tubes form in your tentacles, and the ends morph into large penis heads. Your tentacles start feeling less and less like transformed limbs, and more and more just like enormous, flexible dicks. The latex presses hard around them, causing pleasure to surge throughout "your" body.

"Can't... Must keep self... Must be me... I am May... No! She gave me that name... I am... I am... "

You feel your asshole move down to your bottom. Your vagina merges with it, as does your mouth. A pseudo-mouth forms on your underside, complete with a single tongue. You can taste your own ass, as well as Cynthia's. You're also not drooling spit, but vaginal fluids. Your entire reproductive system and digestive system are no longer human.

"Why... Why... WHY--SJJROMPAAALLECMHEMONENNE"

Your heads have moved far enough. Your brain begins to merge with Cynthia's and you are no longer yourself. You think from your perspective, and then hers, and then yours, and then hers, faster and faster until they begin to blur.

You feel her memories. You're not just reading her mind, you ARE her. You are her personality, her likes and dislikes, her thoughts and emotions. And when you were her, YOU don't exist.

You're Cynthia.

Age 23, Computer Technician, or at least you were until you were transformed into a female.

You like Nintendo and Xbox games, dislike snakes, and are in the middle of being fused to one of your several crushes, May. A cute little brunette that just couldn't resist getting turned on by you. You've masturbated to her four times, and were somewhat alright with fusing with her.

Your favorite TV show is Seinfeld, you disobeyed Alex but didn't get very far, and you're VERY into lactation...

...

Your minds merge together. You now shared personalities from both Cynthia and May, and were reborn as a fusion of both of them. However, you were also a disgusting tentacle beast, that was rapidly losing itself to the extreme pleasure of having ten penis tentacles. Your personality and feelings quickly become overwhelmed by your animalistic lust, and you are reduced to a mere beast.

You are transported to a holding area where you are set upon maidens- girls who obeyed Alex and became porn stars. You restrain them and fill them with your sterile seed in a desperate attempt to pleasure yourself and regain your lost identity through reproduction.

Again and again you fill their multiple holes with your tendrils, pumping them up until your cum oozes from their bodies. Some enjoy it, but many resist. You don't give them an option. You are but a mere monster, after all.

Though occasionally, you remember who you used to be, and scream with existential terror. However, all that comes out are burbling sounds from your underside as you lap up your own jizz off the cum-soaked floor...

[TENTACLE MONSTER ENDING ACHIEVED]