After class ended, Jen and Claire decided they would meet up with Ian, who now apparently went by the name Ianina, since they still were horny from their shennanigans during class. Due to their size, the sisters let everyone else leave the classroom first, not failing to catch the wink Ianina shot their way as she left. Just as Claire was about to guide their shared bodies out the door, Jen stopped her.
"Wait, Claire, there's something I want to do first."
"What's up?" Claire replied.
"I was thinking about earlier," Jen continued, "when we were discussing our current form and hoping it wouldn't get too out of hand. I think I have an idea that could help us going forward, and take a bit of pressure off. I'm going to use the curse on you, and I need you to choose Transform."
"Okay, I trust you," Claire responded.
"Transform or Dare?"
"Transform."
"Alright," Jen started, "for your transformation, almost nothing about our current situation will change, we can still spit up random transformation pills at will, and the current rules for reality and awareness will still reply. However, if three pills are taken at the same time, our current form as of this moment will be set as the transformation. So if we were to take three pills at once later on, regardless of our form at that time, we would return to being an eight-branched hydra-lamia with the extras we have now. Additionally, further splits to our number of torsos will no longer double how many cocks we have on each body."
"So now we have a fallback if we have a bad transformation later on?" Claire asked.
"Well, seeing as we're enjoying this form so much right now, seems as good as any to save as a default."
"Excellent, you're a genius!" Claire exclaimed before adding, "that said, something stood out with your wording. You didn't lock the three pills at once thing to just us."
"Oh really?" Jen asked, a bit puzzled. "Oh well, seems unlikely if we're careful. Maybe the curse will be smart enough to only apply it to us anyway. Shall we head to the west wing now?"
Nodding in agreement, the sisters slithered their way to the west wing restroom for some fun time with Ianina. Upon entering, they found the bathroom was much, much larger than they remembered, probably due to the increasing mutant population of the school affecting reality. It looked completely empty inside, but just as they were about to question if they missed Ianina, the moth girl flew down from near the ceiling lights, landing on one of the hydra's torsos and starting to make out with one of Claire's heads.
"Mmmph, did I startle you?" Ianina asked, breaking the kiss. "You kept me waiting long enough, don't you see how hard I am?" saying that, the futa pointed to her cock, which must have been six feet long at full hardness.
"Sorry," Jen replied, coming up with an excuse, "we ran into a teacher in the hallway on the way here, so were got a bit detained."
"Alright, but please, I need it bad!" the moth girl pleaded.
Smiling, Jen and Claire moved more of their bodies closer, having one hug Ianina from behind and pressing their boobs into her back while reaching their arms to the front to begin kneading her large breasts and stroking her stomach. Meanwhile, three more of their torsos congregated around the moth's cock, playfully stroking it with several hands. Using four heads at once, Jen spoke in a sultry tone, """"My, haven't you been a needy girl.""""
Instantly, Ianina's cock twitched as it tried to get even harder. Jen and Claire's three bodies around the cock then pulled it into a triple paizuri, creating three rings of cleavage sliding up and down its precum-coated surface. As they slid up and down, they stimulated it further by licking it with their lipples, and they used all six of their actual mouths to lick and suck on the tip of the cock. Meanwhile, the other four bodies that were left outside of the action turned to each other and began to satisfy themselves.
It didn't take long for the sensation of twenty-four tongues on her dick to drive Ianina to orgasm, as her seed shot all over the place and her pussy leaked onto the girls holding her from behind. "Okay, now it's my turn to make you feel good." Ianina declared as she reached out to grab several of Jen and Claire's penises. Making sure to grab at least one from each of the four bodies surrounding her, she held one cock between each of her fingers, dexterously stroking off eight dicks at once. The sisters, amazed at how skillful she was, could feel orgasm coming on fast. They guided a few more of their tentacle dicks to wrap around Ianina's breasts, effectively giving them a boobjob.
The shared sensations between all eight of Jen and Claire's bodies soon reached its peak, leading to a massive orgasm that left them winded from cumming with so many cocks at once. Like clockwork, Jen and Claire's bodies began splitting in two, pushing them up to sixteen now. Additionally, they grew a fifth clit in each of their pussies. Per their recent change with the curse, they stayed at sixteen cocks per body. However, they felt an unexpected shift, and looked down to notice they grew a bit longer and wider, and now had two holes at the tip, suggesting that they still doubled in cum production. After the transformation, they no longer felt exhausted, as if they were reinvigorated.
As the sisters took stock of their changes, their attention was suddenly diverted when they felt Ianina begin licking the cum off one of their stomachs, clearly unaware of the transformation they just had.
"Wait, Ianina, if you do that we'll get hard again!" Claire protested.
"I skipped lunch to come here, so this is my meal. Would you deny me that?" she replied with a bit of a pout.