Jen and Clair watched for a few minutes as their parents rutted in their stadium sized dining room. The two females and two males of their once conjoined singular body positioning themselves in every way possible. When it became clear that the four of them were too distracted with their frantic four way, Jen using her half of their conjoined giant body stepped toward the hall that their room rested.
The size of their home was unchanged from their previous alterations of their reality. The one where their mother/father was a 200+ foot tall demon/angel/sphinx, had left them with a long walk to their room. When they finally got their they realized a slight problem. Their 15foot hight from their unaltered reality pill as left them with a regular sized room. Jen and Clair struggled to make it inside the door way, at one point having to crawl prone like a soldier under barbwire. An uncomfortable action by itself made worse since their bodies were their arms, thrusting their hip/elbows into the floor and dragging in.
Once inside it was spacious enough. Since reality had once found them 2 separate people, their room had been large enough to provide them with distance to live togther.
They sat cross legged between their two beds. If they'd had a head on their shared shoulders it would be crashing through the ceiling, the empty space however gave them just enough clearance for their body.
"Guess we better get to work." Said Clair. She bent her arm-body down and caughed, producing a pill between their bent knees. Jen did the same...
After 20 minutes the girls stopped. Their throats were soar and raspy, mouths dry and lungs exhausted. For all their work and pain they didn't even have a pound of pills on the floor.
"We can't keep this up" rasped Jen. "I know, we sound like chain smokers..." Replied Clair, crossing her arms and lying on her knee.
"Well..." Jen began, "guess we better take a pill?"
"Oh yeah!" Clair perked up wheezing and grabbing her throat at the sudden pain. "If we can get more heads, we can make more pills."
"Right, well just have to use the ones we've already made. Just hope we don't end up with a form without mouths..."
Clair took a pill as Jen stated the possable outcome, she was briefly scared to consider that possibility before her arousel overtook here.
Jen and Clair's shared cocks sprang to life, reaching their 30 in length. Their breasts sucked into their chest sand their legs and ass swelled. They stood up on thin forlegs and etched their feet morph. Standing on their toes as their nails grew into a think enamel horse hoof. Their torso retracted into tier waist and soon they could see their cocks grow in girth beind that of their arm bodies. When their shoulders sank into their expanding waist their arms collided wither their respective shafts merging togther as blood surged up their bodies, standing on shaky legs their balls grew to the size of beanbag chairs while their arms and chests shrank into the barrel shape of their horse cock bodies, thick pulsing rings bulging at what was once their waists while their heads flattened into their flared horse cock tips. Noses melting and mouths turing into puckered puffy urethras their eyes resting above them on their flat ridged cock tips. They now stood a 15 feet tall horses ass and groin with fifty inch cocks as thick around as a car tier lacking any fur or tail. They were purely male from the lack of any female genitalia.
Jen tried to caugh, but all that came out was a dribble of thick chunky pre-cum. Clair did the same but with the same result. Side by side and stiff they couldn't see eachother well, the only indication of a plan came when Jen dropped her legs, causing her to sink to the ground, Clair did the same and the two pivoted around. Jen kept going till she was lined up with the pile of pills. An action that crushed one need and topped a desk in their shuffle around the small room. Once lined up, Jen and Clair pushed forward.
They were rewarded with a dull blunt pain as Jen's cock head collided with the wall flatly and sucssefully scooping at least one pill into her urithra mouth.
The rapid transformation that took place first began with the horses ass they shared. It's legs melted into its mass and the twin cock sisters bowed away from eachother , folding in on its anus until both shafts faces away, back to back. Their balls shark into nonexistence and all that was visible was one cock attached to another at its base.
From there the shafts sprung forward and limp, extending about the room as the flesh mass took on colorful blue scales cut with thin black stripes down their legth. From their top and bottom a vibrant yellow fin chased down their expanding legth. When the cock ends stopped growing they had lapped the room 5 times already before the tips bloomed into the pointed snout of a ribbon eel, the girls eyes, and mouth took the place of the colorful eel's and as their slit mouths grew and widened they opened up to show the pink tongues that each were tipped with Jen and Clair's respective bodies on each end. The conjoined eels faced eachother mouths agap to reveal the sister to eachother.
"We'll that didn't work." Said Jen from the right eel.
"Least we have mouths again" went Clair from the left.
"Lets give it another go, we don't have all night to play with our bodies if we want to watch all the fun tomorrow at the shop."
"Oh, I hate when your right!" Grumbled Jen, she spat out a pill and snapped it i half, sharing it with her tongue-tip-twin.
Clair quickly withdrew back into her eel mouth and it sealed shut, the head morning into the wide finned tail of an eel, making Jen's head the true head of the creature.
Rapidly the head of Jen's eel swelled larger as the mouth she rested in flooded forward, inverting itself. Jen's tongue body was thrust forward and out into the blue scaley underbelly of the serpentine body, the bright yellow fin ending just at her waist where here body and the eel's diverged. It's upper jaw continues, eyes shifting and protruding out ward as its head projected in the obvious head of a hammerhead shark. However where the flat jaw of the shark would have set came to rest Clair's face, followed by her torso, arms, breasts, and waist.
Jen then felt an new sensation as her arms sucked into her sides while her middle split and copied. The disorientation was so great Jen blacked out for only a few seconds as she realized she'd just devided down the middle. Her body felt familiar to her though. She knew she was a cock in function. She still had a head, neck, shoulders, breasts, torso, stomach, and waist. She was attached at the hips of Clare's eel-naga body by her own hips, but she had two bodies side by side.
In summery, Clair now sat cramped into the coil of her hundred feet long ribbon eel body attached at her hips, her blue skinned human body with a hammerhead shark's head attached to the back of her skull, while jen had double and became her 2foot long armless girl cock.
Jen sensing that the change was over used both her heads to caugh, producing one pill each. "Well, we've increased our output by 50%" Jen said sarcastically, looking up at her sister. After a long silent pause. Jen said "do you want to try again?"
Clair replyed with...