(Written by: Sophiie93)
The sound of a soft yawn interrupted the silence of Tamiko's room. Slowly, her eyelids opened as her vision cleared to see the ceiling of her bedroom. She raised her hand to touch her face as the sensations returned to her mind. She didn't remember exactly what had happened the night before but her body certainly ached as if she had exercised for hours.
“Nnng… I think I'll sleep a little more…” Tamiko said, turning to her left to see Airi sleeping peacefully next to her “Oh… it's Airi…” she said still half asleep, then slowly looked down to see Airi's bare breasts that were barely covered by the sheets “Ah… she's naked…” she said before closing her eyes completely and sighing to go back to sleep.
After a couple of seconds her eyes flew open completely and her face turned completely red. She quickly looked under her covers only to realize that she was also naked.
“W-WHAT!!??” she yelled, quickly backing away from Airi, which only made her almost fall off the bed onto her back. She was quickly embraced by a yellowish liquid, which formed Pineapple's head on the side of her.
“Good morning mistress, did you rest well?” Pineapple asked with a mischievous giggle.
“W-What is Airi doing here? Why is she naked?” Tamiko said a little in panic. Airi slowly lifted herself up with her arms. Her eyes still closed and the sheets fall from her naked body without much concern. She yawns as Pineapple and Tamiko continued talking.
“Mistress, don't you remember what happened last night?” Pineapple said.
“Now I'm scared to ask… I don’t recall drinking any alcohol. What happened?"
“Uh… hehehe” Pineapple laughed, looking away from her.
"Oh, you just…. fell unconscious after the twenty-fifth climax…” Airi said as she yawned again, rubbing her eyes.
“Uhm… I think it was the twenty-sixth…” Pineapple replied as she carefully returned Tamiko to the bed.
“No… no no” Tamiko murmured, while she hugged her legs and took a fetal position in bed.
“Oh, I must have skipped one then… you started counting from the climax she had when you used the tentacles fo-” Airi began to explain, being immediately interrupted by Tamiko “NO… what are you talking about? I fainted from so much sex?!"
"Yep!" said Airi and Pineapple taking the same proud pose.
“It can't be…” said Tamiko, grabbing her hand as she sulked as her memories slowly returned to her mind. “…Did I actually agree to that?”

“Pffft… oh you did… and your dick seems to be happy with those memories” said Pineapple, pointing at Tamiko's crotch, She froze in shock and looked down as she lowered her legs. A dick that could be considered quite massive in proportions rose erect, almost hitting Tamiko's breasts.
"What the hell!!! You did this, Pineapple!!!” Tamiko shouted.
"Of course I did! Who else could?!” Pineapple said laughing.
“I still can't believe you were able to hold that monster inside you…” Airi said looking at Pineapple.
“What can I say… I'm pretty flexible,” Pineapple responded, moving out of the way when Tamiko quickly grabbed her bedclothes and stood up as best she could, balancing the weight of her giant erect dick. “I-I'm going to take a quick shower… you better take this away from me soon Pineapple…”
"What are you taking about? I could take it away from you… now” before Pineapple could finish her sentence Tamiko had already left, slamming the door behind her “Oh… okay”
“I think she left to go jerk her meat…” Airi said, laughing.
“She didn't seem too happy with the cock I gave her, so maybe not…”
“Then why do you think she was so hard?” Airi said looking at Pineapple confidently “I've known her for a long time. Tamiko tends to hide a lot of what she feels and thinks... but I'm sure she enjoys it and she's not as angry as she seems"
“From my point of view, she always seems angry,” Pineapple said, playing with her hair as Tamiko used to do, imitating her. However, with Pineapple’s slime it looked kind of ridiculous.
Airi raised an eyebrow at that gesture but continued talking “And what do we do while we wait? Are you sure you can’t give me a penis like you gave it to her? Please please please!” Airi said touching her lips.
“You never give up, do you? Even if my mistress ordered it, I couldn't do it. Your flesh doesn’t combine with my slime"
Airi just pouted in frustration and then continued chatting with Pineapple until Tamiko was back. Her dick was now flaccid and she seemed completely… focused?
“Look at her… the post-climax clarity must be intense with the size of that dick,” said Pineapple. Tamiko just looked at her and gave a generous smile. She looked like she has seen the truth of the universe and was emanating a very peaceful aura.
“Gosh, she almost looks like another person… how long will that last?” Airi said. Pineapple just approached carefully, enveloping Tamiko’s dick in her slime and making it disappear from her body.
Airi crossed her arms, still naked and sitting on the bed. “I can't believe that you want to be normal when you have Pineapple to modify you like that… you disappoint me my friend”
Tamiko just sighed and then looked at Pineapple "Look... the changes aren't bad but I don't like that Pineapple makes them without my permission" the slime just laughed, looking away with a big smile and unable to evade the blame.
“So... uh, where did she come from anyway? I didn't know slime girls really existed” said Airi, as she looked for her clothes to put something on herself. Pineapple and Tamiko were silent for a few seconds.
“You started wondering that now?! After this many hours?” Tamiko said as she facepalmed.
“Come on, you know me… I'm a girl who has clear priorities,” said Airi, winking at Pineapple as she winked back at her.
“I really like your friend,” Pineapple said, laughing.
“Sometimes I think Airi seems more like your mistress than I do,” Tamiko said. Pineapple tensed up immediately, looking at Tamiko with a worried expression “NO!” she said firmly “My mistress can only be one, Tamiko, and there is no one better”
Airi and Tamiko were frozen by the slime's reaction, while Pineapple returned to her usual behavior, almost as if she was programmed to say that phrase.
“…Aaaanyways, you see…” said Tamiko, walking towards her bed “…it happened one day when I was coming back from work, the park just down the block”
“Ohhh there, I pass by there every day,” said Airi.
“Well, there I found this…” said Tamiko, taking Pineapple's metal core from under the bed while explaining everything that happened, how the core is still somewhat damaged, how it absorbed Tamiko's blood and how Pineapple was freed and placed under her orders “…and you already know the rest of the story, she wasn't here for so long before you discovered me”
“And then you had sex with us!” Pineapple said.

“We… can avoid telling that part of the story, okay?” Tamiko said, blushing while Airi laughed.
“And Pineapple can transform your body or merge with you whenever she wants to? Is it painful?” Airi asked, meanwhile Pineapple surreptitiously approached Tamiko.
“That's right… and no, it doesn't hurt at all… it just feels very strange,” Tamiko said, swaying as Pineapple's mass stuck to her body “What are you doing?"
“I'm bored… I'm going inside mistress' body,” said Pineapple. Tamiko sighed knowing that there was no point in trying to stop her.
“And have you checked how much she can transform you?” Airi said. Tamiko raised an eyebrow “What exactly do you mean?”
“Well… you know, what are the limits when it comes to transforming your body. I imagine you can't change your body to take up the entire room, or grow 20 arms or something like that…”
Tamiko was thoughtful for a few seconds. Airi's argument made sense “Pineapple, can you answer that question?”
“Do you want to be a mass of arms that takes up the entire room? No problem, mistress, just give me a minute…”
“N-No… what? NO, stop, I don't want that…” Tamiko said as Airi's eyes sparkled.
“Aw… I would have done it but surely your expansion would have hurt Airi,” Pineapple said, peeking out with a pair of slime eyes from Tamiko's arm.
“I can leave the room, would that help?” Airi said pointing to the door “Yes!” Pineapple responded immediately. Tamiko held Airi's hand, shaking her head “Airi, stay, please”
“Oh my… what a way to flirt with me, Tamiko~” Airi said all blushing and holding her friend's hand.
“Gosh… I swear you two are going to drive me insane” Tamiko said as she let her go immediately, hearing Airi and Pineapple laughing.
“It seems like Pineapple's limits are pretty high but how about the precision?” Airi said, lifting a pair of invisible glasses with one finger.
The two slime eyes on Tamiko's arm focused their attention on Airi as they let her continue. “Besides arms and penises, what other things could you do precisely, Pineapple?”
Pineapple’s eyes turned to Tamiko, waiting for confirmation.
“I know you won't leave me alone until I try what you want to see... so keep it brief,” Tamiko said, giving up. Airi nodded and clapped her hands “Great! Let’s see… can you turn Tamiko into a humantaur?”
“Human… what?” said Tamiko, looking confused.
“You know, like a centaur but with human parts”
“Uh… does that even exist?” Tamiko said, only to watch in surprise as her body extended behind her, forming a second horizontal torso, followed by a pair of hips and a pair of legs that quickly grew and touched the ground.

“Woah…wtf! This feels really weird,” Tamiko said, extending her arms to her sides and moving her back legs, trying to move around a little. Airi seemed to scan her friend's figure with her eyes before kneeling on the ground to look at her from below “There's a pair of breasts missing here, you know?” she said pointing to Tamiko's lower torso.
Before Tamiko could protest, two pairs of breasts quickly grew between her four legs, hanging freely.
“Gosh… she said a pair, not two pairs… they are so uncomfortable to walk with! They're touching my thighs… take them off!” Tamiko said.
“Tamiko please, you are interrupting the experiment… we are trying to test Pineapple's skills here” Airi said protesting as she touched Tamiko's lower back, which made her tense up a little.
“Ugh… okay… keep going” Tamiko said, leaving her legs still while Airi moved her hand to hold one of her new breasts and lift them subtly “HEY!! Don't touch them! They are very sensitive!” Tamiko shouted, moving away nimbly on all four of her legs.
“Oh wow… you've already learned to move…” Airi said, clapping her hands. Pineapple peeked her face out from Tamiko's body “I've rewired her brain a little so that her mind believes that she always had four legs…”
“Are you messing with my brain? That's a little scary… you can't just insert memories into me of events that didn't happen, right?” Tamiko said, waiting a few seconds with no response “RIGHT?!”
Airi coughed to divert attention “Anyway… next plan. Pineapple, can you grow a tail for Tamiko?”
As quick as before, a long ponytail extended from Tamiko's rear hips. She quickly turned to look, waggling the tail. “I feel like a humanized pony… this is very bizarre”
“That’s true, it's a horse's tail… make it human looking!”
"WHAT?!" Tamiko said before her tail turned into one completely made of flesh, shaking back and forth harder than before until Tamiko managed to control it at will “Is that it? Have you had enough?”
Airi didn't answer at all, she just stared at the movement of Tamiko's tail and then snapped her fingers “I know, listen carefully Pineapple…” she said, holding Tamiko's tail and pointing at its tip “I want you to make a copy of Tamiko's head here... and you will program her new brain to be 100% honest!"
The slime coming out of Tamiko's body showed a mischievous smile, “Okay!”
“Hey wait, no… UGHH oh god!” the flow of sensations prevented Tamiko from continuing to complain. At the tip of her tail a new head identical to hers quickly formed. Eyes, nose, hair, ears and finally the mouth that opened and took a deep breath, filling Tamiko's lungs. The original Tamiko was just looking at the new head in shock.
“Oh god… I want to be alone and touch myself so hard using this new body! It feels so good and it is so sensitive!” said the tail with a totally sensual tone. The jaw of Tamiko's original head almost hit the ground “I-I… that's not what I think!”

“Yeah… sure,” Airi said.
“I wish Pineapple would give me that big dic-” the tail started to say before Tamiko interrupted her “SHUT UP!! Stop! Pineapple, give me control of that head! That's an order!"
Without even hearing an answer, the new head relaxed her gaze and then imitated the original Tamiko's expression. She touched her main head and blinked several times with both pairs of eyes “Oh… oh my… the sensations are very overwhelming…”
Airi was biting her lips as she watched the action “Mmm… good job Pineapple”
Tamiko used one of her heads to see how Airi was rubbing her knees and squeezing one of her breasts with her hand “Wait… you're not testing Pineapple. You are doing this for your own enjoyment!” Tamiko said with both heads “Pineapple, get out!”
Pineapple quickly emerged from Tamiko's body, taking her full form in the middle of the room.
“Wait… return me to my original form” Tamiko said. Pineapple just smiled “I can't do that… my mistress wants that body. She said she feels great a few seconds ago”
“Honest Tamiko said it… it's true,” Airi said, confronting her as well. Tamiko looked away from them with both faces and sighed “How long will this form last?”
“About six hours… or I can extend it if you want” Pineapple said.
“Okay… I'll stay like this for a bit…,” said Tamiko. Airi jumped with happiness “Great! And we can have sex-“

“No sex!” Tamiko said, making Airi pout “Anyway… I'll stay in this form, are you happy now?”
Airi nodded and held the core in her hands, which made Pineapple fix her eyes on her quite cautiously. “So, your blood fell on it and it was just absorbed?” Airi said.
Tamiko approached her, looking at the core with both heads “That's right…” “…and then Pineapple came out of it”
“And how did it end up so damaged?” Airi asked, looking at the dents on the core. It seemed to have received a considerable impact.
“I don't know… I found it like that,” said Tamiko, glancing with one of her heads at Pineapple, who just shrugged.
“Can you bring some tools? I can try to do something about it…” Airi said, noticing Pineapple's discomfort as she held the core.
Minutes later, the two of them were sitting, observing the core carefully “Let's see what we can do… by the way, why are you still naked?” Airi said looking at Tamiko, who just sighed and rolled her eyes “Do you think I can wear pants in this state? Leave me alone… I have this body because of you”
“Actually, you have that body because you adopted a slime girl” Airi said, while chuckling.
“I didn't even know it was a slime until it came out of that sphere...”
Airi laughed “Well, it's still your fault my friend…” then she winked and with a screwdriver she carefully applied pressure on one of the vents in the core. With a loud sound the core protection began to vibrate as if it was trying to resist to be opened and Pineapple immediately surrounded it with her slime, extending it towards Airi and pushing her away from the table.
Airi flew a couple of meters, landing on the ground. In an attempt to recover she saw the shadow of Pineapple, who was spreading her slime over her forming several spikes with it and being ready to attack her.

“PINEAPPLE NO! STOP!!" Tamiko said quickly positioning herself between the two.
The image of Tamiko's naked butt in front of Airi would normally have calmed her down and even turned her on but the situation was much more tense “W-What the hell was that?” Airi said, somewhat terrified.
“Pineapple?” Tamiko took Pineapple's slime in her hands, despite her spikes, which disintegrated upon contact with Tamiko's skin. Pineapple came back to herself after a few seconds, forming her face again with some confusion “What… What happened?”
“You just attacked Airi… Why did you do that?”
“I… I don't remember… the last thing I remember was a stabbing pain and then everything went dark” Pineapple said, returning to her original form and approaching Airi “Are you okay?”
"Get away!" Airi said, pointing the screwdriver at her. Pineapple's expression immediately made her lower it. She seemed worried, even distressed by what she did.
“It wasn't on purpose, I don't know what happened…” Pineapple responded, dissolving her arms and head and turning into a pile of slime in an attempt to appear harmless.
“Airi, come on… she's telling you that she couldn't control it. Pineapple has never attacked you until now, has she?” Tamiko said, helping Airi up.
Airi adjusted her hair and stared at the core “It may be a defense system… I tried to open her core after all”
“I'm sorry mistress, I'm sorry Airi” Pineapple said. It is the first time they have seen a sad reaction from the slime that usually lives to annoy Tamiko.
Airi approached Pineapple and placed a hand on her head. “Okay, I'm sorry for carelessly touching your core…” Airi said. “In exchange, would you agree to absorb my blood too?”
Pineapple's head formed again and she nodded subtly. Airi's eyes shone with excitement as she walked towards the core on the table.
“It surprises me how you take advantage of any situation…” Tamiko said when she saw Airi pass in front of her, she only responded with a wink.
“I think you should be the one to open the core,” Airi said, giving the screwdriver to Tamiko. “You are her mistress after all”
Tamiko placed the screwdriver in the vent and looked at Pineapple “Are you okay with this?”
Pineapple nodded several times “I don't feel tension when Tamiko touches the core…”
Taking a risk, Tamiko applied force to the vent, making the core open and exposing a beautiful amber gem in the middle of a bunch of high tech curcuitry, “Woooow” expressed the two heads of Tamiko and Airi at the same time.

Pineapple on the side blushed and looked away, not saying a word. Airi noticed the gesture and covered her mouth with a mischievous smile “Wait… this is Pineapple's real naked body”
“Mmmm…” Pineapple could only moan, completely embarrassed as she covered her face with her hands and made herself smaller.
Tamiko stared in disbelief at the scene “I must admit, that's a little adorable…” she said, laughing. Airi without hesitation and with a bravery that surprised Tamiko took the first sharp tool she found on the table and made a cut on her palm, raising her hand over the gem and letting her blood drip on it.
The two girls watched as the blood began to be absorbed by the gem, meanwhile on one side Pineapple covered her mouth and opened her eyes wide "UGH... COUGH... AGHHH..." Pineapple began to squirm and the blood was immediately expelled from the gem, staining the girls and the desk with blood drops, leaving both in shock.
“Ugh… how disgusting! I have a disgusting taste in my mouth!” Pineapple said, sticking her tongue out.
Airi's expression went from embarrassment to sadness upon hearing those words. She just lowered her head and she stayed silent. Noticing this, Tamiko wrapped one of her hands around her in a subtle hug that pressed Airi's head against one of her bare breasts. “Don't worry… Pineapple will probably only accept one mistress. There is nothing wrong with your blood…”
“Being her mistress isn’t the problem…” Airi said, lifting her head and kicking the ground with her feet “Pineapple can't transform me if she doesn't absorb my blood!!” curiously, she wasn't moving her face away from Tamiko's breast, which made Tamiko let her go as she rolled her eyes.
“We'll find a way…” Airi said, turning to see Pineapple drinking a full bottle of water, “Ah come on… Pineapple, my blood can't be that bad!” she said, licking her hand and making a repulsive gesture “Well… okay, give me some of that water”
Meanwhile, Tamiko looked at the core with curiosity, seeing the dents on its surface and with a small hammer she began to repair it as best she could, hitting the hard surface in the opposite direction trying her best to avoid all the outlandish cuircuitry. The vibration of each hammer blow seemed to directly affect Pineapple's slime, creating a funny vibration effect in her slime, which the slime girl did not like at all.
After a few minutes, they closed the repaired core, which now looked much more like a sphere than before. Pineapple moved her arms, as if something in her body had changed from the repairs. She made a gesture of taking a deep breath and smiled, approaching Tamiko to begin fusing her slime with her.
“Pineapple? What's wrong?" Tamiko said, more curious than annoyed. On the side of Tamiko's head another one began to form, identical to hers, but under Pineapple's control “I can't explain it but I feel like I am in a better mood,” Pineapple said.
Tamiko couldn't explain what it was, but merging herself with Pineapple this time felt different, as if something had changed in her for the better, which made Tamiko smile.
“Pineapple! Can you grow a dick back here and use it on me?” Airi said. Pineapple’s head turned towards her, “Of course. My mistress wants to use this body for the first time after all, right mistress?”
Tamiko gestured, looking to the side with some tiredness “Ugh… no… wait” she immediately noticed how she had no control over any of her limbs “Damn it…”
Airi quickly knelt down and crawled under Tamiko's body to start having fun. It was scary for Tamiko to think that the day had only just started...

To be continued...