Chapter 6: Showing

“Oh god. Oh GOD!” Zeta moaned and cried out as her body bounced. The siblings had to get up early today, and Skelly had apparently decided that shoving her dick in Zeta would work as a good wake up call for the two of them.

In fairness she was correct. Zeta had gone from sleeping soundly to being very awake very fast when her sister’s impressive member drove home into her depths and started pumping. Zeta arched and shuddered as Skelly’s cock grinded against her insides, the shock of the sudden sex turning to arousal quickly enough from the stimulation, not to mention the sight of Skelly’s naked breasts bouncing freely as she thrust.

“You are so very cute you know, sis.” Skelly said between thrusts, sliding her hands up from zeta’s hips and rubbing her belly, “Mmm hehe I am a big girl huh?”

Zeta gasped for air before responding, “Huh… y-ya you have always been… NNNN well hung!” Zeta moaned and arched again feeling herself start to get closer to orgasm.

“I can even feel myself through your stomach” Skelly said, thrusting hard then petting Zeta’s belly, “Big belly cock bulge, hehe!”

Zeta grumbled between moans, “Oh I’ll make yours bulge tomorrow when. NNN when I’m a guy again!”

Skelly giggled, “You haven’t turned into a guy in a few weeks, just grew your dick, but otherwise stayed female. I kind of like it.”

“How, uh, so?”

“Well obviously having a cock AND pussy AND boobs is better than just having some at a time.” Skelly explained groping her own bust while continuing to hump.

“Yours…. Yours are easy on the eyes.”

“I thought you’d like” Skelly said, then moved her arms behind her back to puff out her chest, “Watch them while I finish up!”

Skelly accelerated. Humping hard and driving her cock in and out of Zeta, meanwhile her uncontained tits bounced wildly on full display. Zeta’s eyes locked onto them, and she moaned along with her sister at the lovely sight before her and the intense feelings within her. At last the siblings came together. Zeta arched and let out a long moan that was echoed by Skelly before thick streams of kitsune cum were pumped into the eager body of Zeta.

Once the two were done, Skelly flopped down on top of her sister, breasts squishing against breasts and her cock still firmly inside, but starting to shrink. “I think this is my new favorite way to wake you up.”

“Please don’t make to much of a habit of it, unless you want me to use ‘inventive arousal techniques’ on you as well, you startled the hell out of me at first.” Zeta pouted.

“Oh you loved it.”

“Maybe, but I’d like some warning, say the night before, or ANYTHING other than ‘suddenly sex’!”

“Oh alright, fine fine fine” Skelly relented, “We should get up anyway, we have another magic lesson with Dad again.”

Zeta huffed and murred softly as her sister got back up and slid out of her. She closed her eyes hoping to get another few seconds of shut eye before having to get up, but was distracted by the hands on her belly. Skelly was rubbing her, first gently then with more intention. Zeta opened her eyes with confusion, “What’s up sis? My belly that interesting?”

“I thought it was a bulge from my cock… but are you getting fat?” Skelly said with a smirk.

“What AM NOT!” Zeta sat up and glared at her, “I keep fully in shape I assure you”

“But you are becoming a bit of a tubbie sharkie.”

Zeta grumbled but felt her belly where Skelly had been groping her. Sure, enough she wasn’t as flat as she remembered herself being. Was she gaining weight? She would have to pay attention to that. She checked elsewhere, feeling her sides, her arms and her breasts, but those all seemed as toned and tight as they ever had been, “Huh? Why’s it just my belly if its fat?”

“What do you mean? To many summer milkshakes I suppose, tubbie sharkie.”

“STOW IT SKELLY” Zeta snapped, shutting her sister up immediately with a tone of actual anger, “I mean if it WAS that you’d think my arms and tits would be flabbier or something, but they aren’t!”
Skelly blinked for a long moment before responding, “Well that’s about all that makes sense, right? I mean their only one other reason to have a growing belly, our wackadoo hormone situation should prevent that.”

“What if it didn’t” Zeta said softly.

“What?” Skelly asked.

“What if it didn’t?" Zeta repeated louder, “Would, would it explain… would it explain why I’m not going male anymore?”

Skelly thought that over. Normally Zeta switched from being a full female, and being a full male on a daily basis, but recently she had only gone from full female to a hermaphrodite form like Skelly’s own. She was either full female or had both sets, but didn’t go full male anymore. But if she was? Would her magic compensate and? It was a thought, but…

“No No no, you couldn’t be” Skelly said, clearly unsure, “That’s about the one thing neither of us should have to worry about. Our bodies are too out of wack for that to even be possible.”

Zeta stood up, her sister’s cum dripping out of her a bit, but she didn’t care, “Skelly I think I am…”

Skelly swallowed hard, her mind trying not to think about what that meant, before looking down at Zeta’s belly bulge. She placed a hand on it and felt something. She wasn’t sure just what she felt, but it was a powerful feeling to say the least, something that she couldn’t ignore and that made her legs feel too weak to hold her anymore. She slid to the floor in front of her sister and just stared at her belly speechless at what she realized had to be true now that she was faced with it, “Oh god… oh god oh god.”

“Skelly…?”

“Zeta” Skelly said looking up at her sister, “You’re pregnant.”