In the dark, spooky night of Halloween where everyone is dressed in costumes to look scary, Rico and Kyoko are dressed up as Batman and Robin, getting candy from each house in the neighborhood, seeing a small pumpkin candy that's unwrapped.

Rico: look, Mommy Kyoko. There's a piece of candy that shape like a pumpkin.

Kyoko: that's pretty interesting, sweetie. It seems to be a candy corn. Before you eat it, I should try it out for you. Just to be safe.

Rico: ok, Mommy Batmommy. I trust you on this mission.

Kyoko: thank you, my baby Robin.

She pat his head, making him smile as she grabs the small pumpkin in her hand, examining it before she puts it in her mouth, tasting the sweet, candy corn flavor of it and gulp it down. Rico looks up at her, seeing that nothing happened from her consuming the candy while they walk together.

Kyoko: the candy taste like candy corn with a bit of pumpkin spice in it. But it seems like nothing happened to me.

Rico: that's pretty cool, Mommy. Look at your nose turning orange.

Kyoko: huh? Really? My skin turning orange, baby?

Rico: yes, Mommy. Your hair is also starting to turn green too. You look so cool like this.

Kyoko: this is pretty interesting, Rico. Let's see what's more from the candy.

Her nose and face slowly turning orange along with her body, smiling to see her skin that's now fully orange from the pumpkin candy's effects along with her hair fully turned green. Kyoko feels her belly now swelling up, stretching out her costume as she blushes, feeling her butt that's expanding really big in front of Rico. Rico smiles, walking back to see her swelling up more bigger and rounder with her arms and legs sinking in her body, leaving her hands and feet sticking out from her divots, and her breasts gets more bigger, sloshing with juice. Kyoko's cheeks puffed out with pumpkin juice, moaning softly as she rock back and forth, her body finally stop inflating, and is now a 10 feet pumpkin woman, feeling Rico hugging her midsection, hearing juice sloshing inside of her body.

Rico: wow, Mommy Kyoko! You're a big pumpkin~!

Kyoko: *muffled* this is pretty different compared to being a blueberry, but this isn't bad after all, baby~.

Rico: I know right? This is going to make our Halloween more fun. You look so beautiful as a pumpkin~.

Kyoko: *muffled* aww, thank you, sweetie. How about you can roll me down the street to our home. We're going to make this night more fun~. *Wink*

Rico giggles as he put his hands on her, gently rolling her through the streets down the neighborhood bouncing on her pumpkin body like a trampoline. Kyoko chuckles to being rolled by him and feeling him bounce on her body makes her enjoy this a lot more. As they went back home in the backyard, Rico stops rolling her, hugging her large, pumpkin butt cheeks to make her moan softly as he takes her costume off slowly, putting his small member between her wet opening, gently thrusting inside of her.

Kyoko: *muffled moans* oh yes, baby. Right in that spot~.

Rico: your butt is really big and squishy as a pumpkin, Mommy Kyoko. It feels really good doing this to you~.

Kyoko: *muffled* don't stop to fill this bat mommy up, my little robin. Let's make this Halloween special~.

Rico: you got it, Batmommy~!

He thrust more gentle, rubbing her big butt cheeks, smacking them to make it ripple a lot. Kyoko roll her eyes up to feel him pumping her up more faster, flapping her sucked hands in their divots, getting more wet with pumpkin juice leaking out of her. Rico moans softly to feel himself getting more close to his climax, precum pulsing out the tip of his member that's making their love more wet.

Rico: *panting* I'm getting close to filling you up, Mommy. I'm almost there~.

Kyoko: *muffled* yes, baby. Just a few more and I'm going to release some juice~.

Rico: I wanna taste your pumpkin juice. It might taste so good~.

Kyoko: that's right, Rico. Let it all out for me~.

She moans softly to feel his warmth filling her up as she lets out some pumpkin juice all over him, panting from her climax. Rico taste her juices that taste really amazing and sugary, climbing up on her body to give her a big kiss, moaning softly to taste her juices from her mouth. They relax outside, looking up at the stars from the bright sky with the moon shining.

Kyoko: *muffled* this was really amazing, Rico. You did a good job filling Batmommy up~.

Rico: thank you, Mommy Kyoko. You're a really fun pumpkin to play with, my Batmommy~.

Kyoko: *muffled giggles* I'm glad to make my little Robin happy. Let's enjoy this Halloween together~.

Rico: sure, Mommy. You're a really good fit to be a big jack-o'-lantern~.

He sits next by her head, relaxing with her as they would enjoy their fun outside, eating Halloween candy from the houses they trick or treat there, tasting various kinds of candy. Rico and Kyoko really enjoy their night as she's now a big pumpkin for their special holiday. Happy Halloween.