Claire's father took the pill and he thought it was an aspirin that he had kept in the pocket that had fallen and swallowed it. Immediately it started to grow and his clothes tore and disappeared. As a pair of breasts grew on Claire's father's chest, his cock retracted and completely disappeared along with his balls giving way to two vaginas side by side. His, now her, skin, turned into red scales, at the same time two pairs of wings grew on her back and a long reptilian tail over her ass.
By the end of the transformation, Claire's father had transformed into an anthro dragon girl that neither Jen nor Claire could see from the angle that they were taller than Lucy or not, giving them the certainty that any difference in height should be small for their proportions.
"Dad, are you okay? Don't you feel anything strange?" Claire asked
"What's this about Dad? You forgot that I am your mother. And answering your question, I'm feeling strange, I'm extremely horny. Could you fuck me Lucy?" the father who is now Claire's mother said, the cock-girls immediately got hard with the dog girl getting excited about the idea.
Reaching a full erection, Lucy was unceremonious and started to fuck the dragon girl, putting Jen and Claire one in each pussy.
From that moment on Jen couldn't see anything else, all she could do was feel the pleasure of being inside a pussy for the first time. Even though she couldn't see Claire, she could feel her friend through the wall of flesh that separated the inside of the two pussies and hear the muffled sound of her moans. Suddenly she felt some pointy things changing her balls and then something rubbing from behind, which only made her think that someone must be fucking Lucy's pussy.
It was only a matter of time before Jen felt the cum traveling inside her when Lucy was about to come, at this point Claire's 'mother' distanced herself by forcing the cock-girls to be thrown out just as the cum spurted out of their mouths and covered part of the floor. Meanwhile whoever was fucking Lucy's pussy also came. Only at the end of their orgasms the cock-girls could they see that who fucked the dog girl was Claire's original mother.
Shortly after everyone recovered from their orgasms, Claire's original mother, who with the change of reality was now her father, said "The fun was good but I didn't like what you did. You shouldn't have started the fun without calling me. If I hadn't come to see how you were doing I would have been left out. Now you will be punished." That said, the scorpiontaur woman, from whom, when the ckck was not erect worked like a regular scorpion's tail, stung Lucy and Claire's current mother. What Jen and Claire didn't know was that the scorpiontaur's poison didn't kill, but it changed the size of who was stung by her, but there was no change in reality as it happened when taking the pill. The dragon woman shrank to the same height as she was when she was still a human man. Lucy also shrank, and since they were part of her body, Jen and Claire were also affected. The dog girl ended up only 6 feet tall while the stick girls ended up just one foot long and their balls were the size of oranges.
"What did you do to us?" Claire asked her current father
"That's the punishment for trying to keep me out of the fun. Remember that I let you be giants when you asked, now I took back the size I gave you. Who knows if you behave I can make you big again." the scorpiontaur said
With their size it has now become impossible to eat at the giant table that Lucy used, so everyone went to the dining room where they all ate together.
During dinner Jen noticed how much more a pill appeared and was able to hold it in her mouth. She thought about swallowing it herself but seeing her mother, who was trying too hard to eat with everyone due to the exaggerated size of her bottom and having to eat a lot more to get enough nutrients, which would take too long, she then spat pills in her mother's food hoping that a better transformation occurs for her.
Jen's mother continued to eat and once again swallowed a pill without realizing it. Her new transformation helped in a way, as her whole horse part shrank to the size of a normal horse, but the rest of her body changed too. In the end, Jen's mother had turned almost entirely into a hermaphroditic horse with a human head. The aphrodisiac effect of the pill made her cock hard and she stopped eating, bent and sucked her own dick until she came, only after this she continued eating the food that was now seasoned with her cum.
After everything that had happened, Jen started to feel sleepy, which she saw happened to Claire too since she could barely keep her eyes open. Lucy also agreed with them, since when she finished eating she went back to her room, climbed on the now giant bed for her and slept.