Outside to celebrate Airborne August with Rico and Maria Robotnik relaxing, feeling how really windy it is today. Maria gets up from the ground, scoops him up in her arms to give him a big kiss, having a fun idea they could try out together.

Maria: hey, Rico. You know what day it is right~?

Rico: it's Airborne August, Mommy Maria! This is the day you'll be a big blimp~.

Maria: exactly. I wonder if you have a helium tank for me to use~?

Rico: I do have one. It's right there on your right. I've got prepared and drag it here for you to inflate yourself~.

Maria: aww, thank you, baby. Now, hold onto my back~.

She puts him on her back, grabbing the helium tank, putting the hose on the valve, holding it in her hand as she smirks at him, putting it in her mouth, and turn on the helium tank. Rico watches her cheeks puffed out, giggling to see her belly swelling up as he clings onto her from behind.

Rico: you're swelling up really good, Mommy. Look at your belly getting bigger~.

Maria: *muffled* thank you, baby. I love being inflated for you~.

Rico: keep going for me, Mommy Maria. I want you more bigger~.

Maria: *muffled giggles* anything for you, sweetheart~.

She pays her inflated belly like a drum, inhaling a lot more helium as her butt and thighs expanding, stretching out her dress even further to show her panties and butt crack, floating above the ground, and moaning softly to feel herself expanding a lot more bigger. Rico smiles with excitement, sitting on her back as they float a lot more higher and higher to the sky. Maria's arms and legs gets puffed up, spreading out like a starfish along with her breasts getting a lot bigger. She spits out the hose, panting as they're now up in the sky, becoming a big blimp for Rico to ride on and play with.

Maria: *muffled* what do you think, baby~?

Rico: I love your Inflated body a lot, Mommy Maria. You're a really beautiful blimp for this day~.

Maria: *muffled* aww, thank you, Rico. I'm glad you love me Inflated as always. Now, cuddle on my back more so we can have a lot of fun in the sky~.

Rico: ok, Mommy. This is going to be fun, hehe~.

They continue floating around, seeing the forest below them with the beautiful wilderness with animals running through the trees, birds flying around them that makes it a beautiful sight. Rico relax on her large ballooned butt, pulling her panties down to tease her exposed crack, rubbing her cheeks that made her moan softly. Maria giggles feeling his small hands rubbing her Inflated belly and rubbing her breasts, teasing her erect nipples.

Rico: do you like that don't you, Mommy~?

Maria: *muffled* mmmm, yes, baby. I'm loving this moment so much... Let's do this at home~.

Rico: hehe, my little peepee is hard for you right now. We really should go back to my mansion so I can give it to you~.

Maria: *muffled* you're so adorable and naughty, Rico. I really love that about you. Let's go to your mansion now~.

She floats down to his large mansion, going to the front door as Rico opens it for her, seeing her getting stuck between the doorframe that made them laugh. He helps her squeeze through by pushing her inflated butt cheeks that made her moan, finally getting her inside, getting to the living room where they settled down with him taking her dress and panties off, revealing her naked inflated body. Maria gasp a bit to feel his member getting in her puffy folds, filling her up that made her wet.

Maria: *muffled moans* oh yes, Rico. Keep going for Mommy~!

Rico: it feels so good doing this to my blimpy Robotnik, hehe. I love doing this with you a lot~.

Maria: *muffled* I'm loving this a lot too, baby. Your little peepee feel so good pumping my fat butt up~.

Rico: *panting* and I'll keep going for you, Mommy Maria. Enjoy being my big blimp for me~.

He keeps thrusting more faster, rubbing her inflated clit to make her moan lustfully, feeling her getting more wet. Maria roll her eyes in the back of her head, flapping her inflated hands to feel him pumping her up that is really addicting and hope this never ends. Rico was getting close to his limit to releasing all of his love deep in her womb, feeling her inflated butt wobbling a lot in front of him that's mesmerizing.

Rico: looks like I'm close to letting it all out, Mommy Maria. I can't hold it much longer~.

Maria: *muffled* good, baby. I need you to fill me up with all of your love. Mommy need all of it~.

Rico: *moans lustfully* I'm going to fill you up now... It's coming out~.

Maria: *muffled panting* ohh... I can feel your warmth filling my butt up, dear~.

She moans more to feel his seed now filling deep in her inflated pussy, feeling him teasing her clit that made her squirt on him, panting from her climax. Rico slowly takes his member out, covered front their combined juice, walking around to cuddle between her inflated breasts, and give her a big kiss while playing with her boobs, squishing then gently. They moan softly in the kiss, tongue dancing together, slowly breaking the kiss with a satisfied smile.

Maria: *muffled giggles* that was really good, Rico. You filled this blimp very well~.

Rico: thank you for being a big blimp for Airborne August, Mommy Maria. You're a really good one along with my Mommies~.

Maria: *muffled* you're welcome, baby. I'm glad to make you happy today. It looks like your little peepee is still hard, hehehe~.

Rico: well, I'm full of energy and up for more. Wanna give it a lot of kisses~?

Maria smirks, nodding to his question as he brings his member to her plump lips, feeling her kissing the tip gently that made him chuckle to feel her tongue licking it. Rico play with her inflated breasts, making them squeak and creak that made her moan softly due to how sensitive she is while inflated. Maria love to taste his cock, looking at his eyes full of lust as she was really proud of herself to be his inflated blimp for Airborne August.