Though the merged children eventually stopped their trickle of urine, they continued to let their elder sister and mother lap their tongues on their nethers.
At some point during the spectacle, Ty had wished his penis and testicles would stay flaccid for only a short time after each ejaculation. Ty looked carefully Billy and Katie’s form, and wondered how to proceed.
Then he made his wish.
Ty heard Billy and Katie’s thoughts sound out in confusion as their toes fused together, and their feet were reduced into round lumps on the ends of their legs. Just like their hands, the children’s legs withered like candles, and Billy and Katie felt them shrinking into their torsos till they could no longer feel them.
“Ooooh, our legs…”. Katie tried to sound more alarmed, but she was distracted by her sister’s tongue still exploring the insides of her girlhood. Billy didn’t mind it too much either.
“W-we’re like a worm now!” , said Billy, giggling as his little member started to go erect again in her mother’s mouth. With no means to touch themselves, the children could only wiggle their shared body as they tried giving themselves a tickle, while Helen and Susie continued their work. Somehow, the helplessness made the children even more thrilled for a touch.
As this went on, Ty made his next wish. Helen and Susie continued using their tongues when they suddenly pulled their mouths away in surprise, and they watched as the young children’s privates began to disappear. Katie’s was the fastest, as her vagina and vulva sealed together at once, while the opening of Billy’s foreskin closed up holeless member started sinking into his crotch with his testicles.
“M-my penis! My penis is disappeari…”
Billy was suddenly silenced. Katie tried to exclaim in her thoughts in reply, but she found she could only moan and mumble. Though she could still use her voice in her thoughts, it was like she couldn’t even remember how to use words.
Katie could hear Billy’s voice moaning too, but she could also get a sense of her brother’s excitement and happiness. Unknown to them, their minds now had a closer link with each other, and they could now feel each other’s emotions, and even some of their thoughts.
The women reached out to the the merged children for more devious play, when the children suddenly let out an embarrassing ‘pphht’ out of both anuses.
Helen and Susie giggled, while the two youngest children shared each other’s embarrassment. The two remaining ‘humans’ in the room could still hear Billy and Katie’s cute whimpers, but with no way for the kids to properly speak or move, Billy and Katie were at the two women’s mercy.
Helen and Susie went in again, and began tonguing the kid’s remaining orifices; their chins digging into the kid’s buttcheeks. Katie and Billy found their anuses were much more sensitive to touch, and it was almost like being touched on their former privates. Their worm-like body wiggled as electric sensation shook their senses as the women’s tongues continued to invade their insides.
The women suddenly found their tongue’s being forced out of the children’s form as the kid’s anuses began sealing up, leaving Billy and Katie with no orifices whatsoever. However, the kids also felt their body becoming more sensitive than ever before, till even the feeling of the bedroom carpet pushed the kids towards a growing orgasm.
Helen and Suzie watched in fascination as Katie and Billy’s body began to shrink. The kids continued to wiggle in confusion and bliss, until their body started taking on a shiny plastic sheen like Helen’s rubber-like body. Unlike Helen’s hot pink color though, Katie and Billy’s body was shifting into lavender purple.
Their body also began to narrow and morph into a cylindrical shape. While their buttocks stayed relatively the same under their bodies, the tops of their crotches began bulging outwards, till Katie and Billy’s bottom ends each resembled the tips of penises.
Eventually, all that was left of the young brother and sister pair was a single foot-long double ended dildo, lying lifelessly on the carpet with the bedroom lights reflecting off its bulbous ends.
Katie and Billy were utterly overwhelmed by their new sensations, and with their wordless moans through their thoughts, they tried to beg their mother and elder sister to fondle them. Instead, Helen and Susie heard a blend of Katie and Billy’s voices in their heads, squealing in sync together. The changes had connected the children’ minds so closely that even though were still two separate minds, Katie and Billy thought like one single person. Or one single living sex toy.
Helen picked up the purple dildo from the ground (which got both Katie and Billy squealing adorably)
“Wait, which one is Katie and Billy again?” , Susie asked. Both ends of the dildo were completely identical, and even Helen forgot which end was which. The mother shrugged.
“I don’t think they care,” she replied, as she brought the dildo close to her mouth. She gave one long lick along the side of the rubber shaft, and grinned as the pleasured cries of her two youngest kids rang in her head.
While Helen was doing this, Susie began taking off the strap-on dildo from her lower body, and breathed out in delight as her father-turned-dildo slip out of her vagina.
As Ty watched her take off the latex underwear with the two dildos on it, another idea suddenly came to his head.