Day 16

John is back in his old lab, surrounded by notes and computers. Simulations are running in the background; chemicals are bubbling in their beakers. John is squeezed into a massive lab coat, clearly made of two normal sized coats stitched together, his arms still push the limits of the sleeves, and his chest strains the buttons on the front. The tablet in his hands looks comically small, almost like a large phone, nearly completely covered by his giant palm.

“This is day 16, log 15 of reports and analysis of Serum XM-32. As you can see, I am back in the lab. It’s late and well after hours, but I got my buddy to let me in to do some urgent experiments. Gerald and Kim are fine, still very tired and hungry, but their vitals are okay. What I am doing here is creating a stopper dosage of RV serum to prevent them changing more than they would like.” He looks over at a screen briefly before turning back to the camera. Even the minor motion of turning his neck and leaning is met with a soft chorus of straining fabric.

“After last night, Gerald and Kim both experienced a growth reaction in two unique ways. Kim grew in height and muscle mass, but also showed signs of abnormal growth in her clitoris. Gerald, in a first, became smaller, and his fat redistributed instead of burning off.” He runs a hand through his beard, rubbing his chin, two small pops are heard from the seams of his sleeves.

“Other effects, Gerald is growing his hair back, body hair has fallen out, his skin has gotten softer, his wrinkles are fading and” John pauses for a beat, a look of exasperation on his face, “he is developing feminine breasts. His blood work currently matches that of a person taking estrogen pills for multiple years. His genitals have similarly reduced in size, his erect length now being slightly above 2 inches and his testicles are about the size of almonds. His lips have shown an increase in collagen, plumping them up, and his nose has reformed to be smaller. In the few moments we have had with him to speak, his voice has lightened and his adam’s apple is noticeable smaller. Finger and toenails are also growing in length at an accelerated rate, with those body parts also becoming thinner and more delicate.”

John flicks the screen of the tablet and takes a quick glance at the new information. “Kim has experienced an increased libido, expected; her breasts were nearly burned off, but have now begun to grow again, changing shape to be more perky and rounded, similar effects have been noted about her ass. Her hair is growing and all body hair from the eyebrows down has fallen out. The typical effects, wrinkles reducing, lips plumping, youthful appearance is returning, skin tone evening, all expected with serum ingestion. She is also showing a rise in dominant behavior as well as general confidence. She stands tall and straight where last night she was a wilting lily. She instigates sexual contact with Gerald in almost every instance we’ve observed, one exception occurring where Gerald awoke in an **** state of arousal and begged Kim to fuck him back to sleep.”

“I told them about the serum and what had happened. I also assured them that while I wasn’t sure I could reverse the effects; I could stop them. Luckily for me, they are happy with their changes so far, so they were game to simply stop the changes with one small caveat: they wanted to change a bit more, but quickly. The idea of having to play Russian roulette with where and when you suddenly change your entire physiology is clearly not a popular one. Which brings me to here. I needed some components that I couldn’t quickly source to my house to create the first of our limited effect serums. The difference between this serum and the RV serum will be that this is a dosage of the original XM serum, but with the limiter mixed in. This mix has to happen at the point of injection, or else the RV will simply nullify the serum in the vial while it waits to be used. So, two injections will be done, one of XM, then quickly followed by RV. It’s messy and I’d like to have more time to develop an actual serum that can be tailored to subject needs, but Gerald and Kim can’t hide in our house forever, and Julia and I would like or bedroom back.” He laughs a little while pushing a button on a device. There is a pneumatic hiss and a pair of vials are removed from the container.

“I will be back shortly with the video of this administration.”

The video cuts and rejoins back in the Simons’ house. Gerald and Kim are in the center of the living room, naked with their hands cuffed and restrained to the ceiling via chains. There is enough slack to allow them to bring their hands to just above head height and bend their elbows. Gerald stands with his legs pressing together, his face is bright red with embarrassment, but the small erection peeking from between his thickened thighs suggests he might be enjoying the situation. Kim is standing still, legs perfectly shoulder width apart, a confident look on her face. Since the last filming, her hair has regained life, a deep red color shining in the light of the room. She has also restyled it to be wilder and more aggressive, with a trio of braids on one side of her head, giving her a warrior woman aesthetic. Her muscles have thickened, along with her waist. She now looks like someone who is committed to doing CrossFit as a regular hobby. Her clit is visibly protruding from her labia.

John and Julia are present next to each of them, preparing the syringes and injection sites. They are clad in what would be considered normal athletic clothing if not for the massive bodies stretching the fabric to the limit. Both are fully focused on the task at hand. After swabbing the areas, John turns to address the camera.

“This is the administration record of Serum XM-33 by John Simons and Julia Kinnier on subjects Gerald and Kim Jackson. Subjects are still under effect of Serum XM-32 byproduct, this is noted and expected to not affect XM-33 effectiveness. Administering XM-33 now.” The two demigods approach their volunteers and dispense one of the vials into their veins.

“Process should begin in roughly 20 minutes.”

The video cuts again and rejoins to the sounds of moans and chains moving rapidly. John is moving quickly between the two subjects and Julia is quickly typing on a tablet everything taking place. As Gerald and Kim begin to writhe, John quickly swabs their arms and injects them with the second syringe.

“Administering dosage of RV, allowing for some unlimited growth for subjects before serum neutralization.” He looks over at Gerald and Kim, “Can either of you talk? How are you feeling?”

The couple’s moans fill the room as they increase in volume. Kim is the first to gain her ability to speak. “I feel so alive! So much energy! It’s like I’m skydiving or cliff jumping, but forever! Feel so… strong and powerful.” As she says the words, her arms bulk further, rounding into solid beefy mass. There’s a popping noise and her back lengthens along with her legs, increasing her height. Her clitoris, before just visible, now pulses, red and engorged with blood. With each pulse, it grows out little by little.

“Oh shit, Kim you’re getting so buff!” A light voice comes from the small man on the left of the frame. “And you, ahh, your clit is getting all big and stiff!” Gerald’s eyes are focused on his wife’s crotch, uncaring about the changes occurring in his own body. His eyes have grown more prominent and brighter, his lips inflating even more to look artificially plumped. His neck has become slender and delicate, as have his hands and feet. His nails have grown to ½” and perfectly rounded as though manicured. His small chest has pushed out into noticeable breasts, a large A cup or small B cup, the nipples becoming more prominent and thicker. His waist has collapsed in, a crack is heard as both of his hips separate and widen out beyond his narrow, thin shoulders. As he twists he shows his growing ass, a round and bouncy thing perched atop curvy, thick thighs. Kim looks over at her changing husband.

“And you’re getting so cute and fuckable!” She growls and winks at the blushing boy, thrusting her hips towards him, her clit lurching forward in a larger burst of growth. The skin of the lower clitoris has begun thickening, matching closer to Kim’s normal body. The strong woman gives a grunt and crunches her legs up to her stomach, hanging by the chain. “Oh, hurts on the inside. Something is happening. Feels like things are moving around.” Julia notes these observations as John places a stethoscope to her abdomen.

“Her internals are shifting, but it’s lower than her stomach, I need you to relax Kim.” The woman looks with apprehension at the tanned Adonis, but slowly releases the tension in her midsection, allowing him to move the tool lower. “Major movement in her womb area. Genital reconstruction possible.”

“What the fuck does that mean?” Kim shouts as a piercing pain suddenly shoots through her clit, causing her to howl. “Holy FUCK what was that!” John leans down and examines her clitoris.

“Clitoris has developed an opening; it appears to be a urethra.” Kim’s wide eyes stare down at him.

“You’re saying I’m…I’m…growing a DICK?!”

“In the absence of other options, yes.” John states matter of factly. He stands and turns his attention to Gerald. The man has continued his slide into femininity, his hair hanging in front of his eyes, matted to his brow with sweat. John moves to the other side of him, squatting down behind Gerald and putting his hands on the man’s growing cheeks.

“Oh yes, please. I need it.” He grinds his hips into John’s strong hands. The gigantic man increases his hold on the tiny boy and spreads his cheeks apart. With a swab, he collects a sample from Gerald’s needy hole.

“Look at this, his anus is secreting a lubricant not dissimilar to that of a vagina. Incredible.”

Gerald looks over his shoulder as best he can, panting with need. “Yeah? I’ve got a sweet little bussy now?”

“GERALD!” Kim stares at her husband in shock. He turns his head to face her.

“What? I searched some things on the internet, learned some terms I never thought would apply to me, but I’m soooooo glad they do.” Gerald begins shaking his newly pumped ass, causing a wave of flesh to ripple and clap with his gyrations. “You hear that baby? You hear the clap of my femboy ass cheeks?” Kim gave a guttural groan and strained against the chains, her muscles pumping even further, her body growing taller, her breasts pushing out.

“God, I want to fuck you so bad honey, you’re so cute and sexy. Want you on my fat cock.” With another hip thrust, the skin of Kim’s clit finishes its slow march to the head of the organ, forming a turtleneck of stretchy flesh around the corona. As the flesh knits together, a massive surge of blood and tissue spreads underneath, pressing veins to the surface and thickening the woman’s new penis to resemble an average man’s. “Oh, look baby, my cock is fully formed. It’s formed just for you, to fuck your fat bubble butt.” Kim is practically foaming at the mouth as she leers at her cute husband. Gerald twists in his restraints and turns his ass towards Kim, he spreads his legs and begins to bounce his ass with the skill of a top tier Instagram hoe.

“I want it baby, I want it so bad. Want you to fill me up, please fill me up. Fuck my bussy raw and deep.” He moans and nearly falls to his knees. There’s a loud crack as his hips push out a final couple of inches. His ass lifts more and rounds into nearly artificial shape. His muscles begin to define themselves, not to the **** extent of the other people in the room, but to give him soft lines of definition. His stomach showing a sexy column of firm muscle, his arms toning but not growing larger. His thighs firm and gain the sweeps of quadriceps and calf muscle, but keep the soft covering of fat, creating a deliciously curvy limb leading up to his showstopping ass.

Kim growls and loses her footing, hanging from the chain once again, but pressing her hips forward as much as possible. Her muscles pump another inch in all directions, making her truly jacked, even compared to Julia. Her face and jaw pop, becoming regal and defined. Her jaw widens and becomes sharp, her cheekbones rise and make themselves prominent. Her breasts again grew to what Julia could tell were E cups, perfectly pressed against each other creating a permanent cleavage. Kim’s hips had not grown during this process, her waist even gaining width as it thickened with muscle. This combined with her growing back muscles shifted her silhouette into the ideal V taper sought after by male bodybuilders. Her ass was tight and dense, legs thick with muscle, perfect for reaming her husband all day and night. The final surge hit, and the new organ hanging from her waist charged out, packing inch upon inch of hard cockmeat onto her. With a strained, barely audible scream, her first ejaculation rocketed out of her new 11-inch cock, flying fully across the space between subjects and onto Gerald’s still bouncing ass. Upon feeling the cum hit his back, Gerald succumbed and came weakly, watery semen leaking out of his tiny cock and running down to the floor. His girlish moans turning into whimpers as he comes down from the orgasm.

John studies the vital signs of the couple. “All signs returning to normal levels, looks like they’ve stabilized. Are you alright Gerald?” A high soprano giggle rang out from the little man’s slumped form. Spinning in his restraint to face John and the camera, the girly man flipped his new long hair over his shoulder with a dramatic swish of his head and shot John a sultry look.

“I don’t think there’s a Gerald here anymore, stud. Call me, mmmmm, Geri.” He rubs his legs together, languishing in the newly soft and smooth skin of his body. “I feel so alive and young again! Unhook me and let’s get this party started.” He runs a long tongue slowly over his plump lips, emphasizing the lewd display with a sexy moan and a smile.

“Yeah, let me get at the little slut.” Kim was also enjoying her new body, flexing against the chains and doing her best to generate friction on her new cock. John smiled and did a last check of things.

“Alright, we have to take some blood first, to make sure everything is OK. Then after I collect, you guys can go wild.”

“Heehee thanks daddy.” Geri giggles to John. Kim shoots him a look.

“I’m the one you’re gonna be calling daddy, slut.”

“Oh, so true…” Geri trails off as he ogles Kim’s cock, nearly drooling at the sight. The process of collecting samples goes quickly with John’s trained hands and the couple are let loose from the chains holding them. After a short period of rubbing sore wrists and getting blood flowing back into their arms, Kim and Geri collide with unlimited lust. Geri drops to his knees almost immediately, worshiping his new fixation. Kim runs a hand through his thick black hair, guiding his mouth up and down the sides of her length.

“Good slut. Get it all lubed up.” The words are hissed through gnashed teeth, a look of pure dominance written across Kim’s face. It is not long before the man is tossed to the floor, face down, ass firmly pointed in the air. Kim spreads his ass, exposing his glistening hole.

“So wet here, darling. It would be so rude if I didn’t STUFF you full of cockmeat.” She presses the massive head of her cock against his hole, teasing it before quickly hilting herself inside. Geri screams in pleasure as Kim begins to savagely pound his ass. Any coherent thought is lost for the couple as they devolve into moans and grunts, each trying to push the limit of how closely and deeply they can become coupled. The pheromones and arousal of the scene are clearly affecting Julia, who has disrobed completely and begun to masturbate to the new couple’s love. John approaches the camera while stripping off his clothing with the sound of threads being shredded by his pure strength. He is breathing heavily as he reaches the computer, filling most of the frame, only Julia’s perfect body occupying the upper corner.

“Fuck it, smells too good. Too horny. Tests can happen tomorrow. Gotta fuck now.”

The video feed cuts for a final time.