Stuck Like Glue [Scat]

Celestia was the first to arise. She yawned and rubbed her eyes, and without thinking about it, stood up from her bed. Immediately, she noticed the lack of weight attached to her rear. She looked back and saw the still sleeping Luna, detached from her though still bloated. Celestia excitedly shook her sister awake, “Luna! Luna, get up!”

Luna groggily opened her eyes, groaning out, “Ugh. Dearest sister, what doth thou need?

“We’ve been separated, look!”

Luna craned her neck up and saw that Celestia had finally been removed from her plot. Immediately, Luna’s mood brightened like her sister’s sun, “Oh joyous day!” Luna reached up and hugged her sister, gleefully embracing her before Luna felt her stomach gurgle. “Um, sister? Would thee assist Us to the lavatory?

“Of course, Luna.” Celestia heaved her sister from the bed to her hooves.

As they walked to the bathroom, Luna thanked Celestia, “Thank thee, dear sister, We might be occupied for… much longer than usual.”

They reached the door and Celestia stepped back to allow Luna inside. Luna’s ass caught Celestia’s eye for a completely different reason this time, “Um, Luna? There seems to be something in your posterior.”

Celestia inspected the object that was lodged in her sister’s ponut. The object had a wide flat base, with an elegantly calligraphed “D” etched into the bottom. “Oh dear. Sister, I think it’s a buttplug.”

Celestia started to magically pull on the plug, before Luna snapped at her, “Not out here! If thou pull it here, the mess will be on thy hooves!” Luna waddled in front of the mirror, craning her neck to see it and letting Celestia further examine it, keeping a chamber pot at the ready if she couldn’t reach the toilet after the plug was removed.

Celestia pulled on Luna’s plug and was met with extreme resistance. “Come on, Luna, push!” Even with the combined efforts of their magic and Luna’s pushing, the buttplug refused to move. Celestia took a closer look at the plug and noticed something even more peculiar. Where Luna’s ponut made contact with the plug’s shaft, her anal lips fused to it like a thick, continuous bead of glue.

“Oh dear, I don’t think this will be coming out very soon at all.” Celestia broke the news to Luna. Her sister’s bright mood from earlier had completely faded, replaced by the dejection from last night. “I’ll go get my spellbook, see if there isn’t an unfusing spell.”

As she left, Luna sat on the toilet and looked down upon her massively bloated stomach. As she shifted on the seat, it practically moved like gelatin. With a defeated sigh, Luna waited for Celestia to return, sitting there, digesting the mountain of waste her sister had deposited in her.