When the box opened two figures emerged. The first one was Jacky, the other looked exactly like Jacky with the only difference being her boyishly short hair. The fused leg stalks of both were disappearing in a seemingly endless black void inside the box.
“See, sister? I told you it'll be great fun to play together,” Jacky said to the other jack-in-her-box.
“You were so right, sister, I was so silly to refuse initially,” Jacky’s ‘sister’ replied.
“Have you already decided on your new name?” Jacky asked.
“Hmm…” The other girl tilted her head until it had done a full 360 degree turn. “Aha! How about Jacki?”
Jacky looked pensive for a moment… before breaking out in a wide grin. “That's a great name. Couldn't have come up with something better myself. Let's celebrate your new name!” Jacky moved forward and kissed Jacki right on her lips. As their tongues intertwined inside their mouths, their bodies did the same, turning around and entwining with each other until only their heads were free. Their moans were muffled by each other’s mouths as their bodies rubbed against each other with maximum surface area. Both came at the same time, spraying black latex-y fluid out of their breasts and vaginas, which were hidden somewhere inside the entwined stalk. Instead it soon started leaking out of the gaps.
As their lips parted and they started to separate again Jacki was the first to speak, “Thank you, sister, that was lots of fun. But what if it gets boring?”
“Then we'll just find something… or someone… else to play with.” Jacky casually replied as her eyes went down to the only parts on their bodies that weren't black or white, brass chokers that seamlessly fit around their throats. When the ring was absorbed into the box, it magically adjusted to fit their new shared, armless body.
Jacki looked around the dark and empty library and then down at their box. “Jacky, how do we move around with this body?”
“We’re jacks-in-the-box, we’re usually not meant to walk around. But we have the ring, we could always give ourselves legs or wheels or just levitate… but they all sound so boring.”
Jacki stuck out her tongue in heavy concentration until she had an idea. She closed her eyes and made a wish. “Alright, follow me.” Jacki disappeared inside the dark depths of their box, followed quickly by Jacky and the closing of the lid. After some initial rumbling the box jumped forward with a comical boing-sound. Soon enough the box quickly maneuvered between the bookshelves without issue.
The box stopped and the two female jacks jumped out again. “That was a great idea, Jacki. So, where do you want to jump to?”
“I dunno, Jacky. I’ll follow you wherever you jump.” Jacki giggled at her own joke.