In the evening by the mansion with Rico and Misato Katsuragi having plans for their fun night, setting up everything in the living room, and a helium tank in the middle, smirking at each other as they have a really good idea. Misato puts Rico on her back, grabbing the hose from the floor, and connect it to the helium tank.

Rico: ready to be a big blimp for the night, Misato?

Misato: *smirks* I'm totally ready for this. I'm always prepared for our fun, Rico~.

Rico: that's good. Now, put the hose in your mouth and turn on the helium tank. Become my big blimpy Misato~.

Misato: hehe, ok, baby. Hang on tight~.

She winks at him, feeling him clinging onto her back as she would put the hose in her mouth, turning on the helium tank, feeling her cheeks swelling up and her belly expanding, stretching out her dress and jacket. Misato giggles, patting her inflating belly as her butt and thighs expanding, bouncing it up and down to make Rico giggles and bounce her from behind.

Misato: *muffled* love what you see, baby~?

Rico: I really love seeing you swelling up, Misato. You're getting pretty bloated~.

Misato: *muffled giggles* I'm glad you're enjoying this. Looks like I'm floating already. Let's continue the process~.

Rico: I'm totally looking forward to how this is going to go. Keep going for me~.

Misato continue to inflate herself for him, getting a lot more bigger, floating from the ground as her arms and legs sinking in her body, hands getting puffy and her breasts gets really huge, wobbling a bit. Her cheeks expanding more bigger, spitting out the hose, and finally becoming a large blimp for Rico to play with. Rico giggles, bouncing a bit as he relaxed on her back more, patting her head gently.

Rico: now you're my big blimp for the night, Misato. You look so hot like this~.

Misato: *muffled* aww, thank you, baby. I'm totally going to stay like this for a while since you say I'm hot as a blimp~.

Rico: that's really cool. I'm going to bounce on your body a lot~.

Misato: *muffled* I'm very turned on right now from this. Go ahead and play with your big ol Misato~. *Wink*

Rico giggles, bouncing on top of her body, making her laugh loudly, using her as his personal plaything, hugging her large ballooned butt cheeks, and lifting her dress to get her more exposed. Misato blush a bit, smirking more as she tries to wiggle her Inflated cheeks in front of him, moaning to feel his small hands rubbing her large breasts that are sensitive and her belly like a drum.

Misato: *muffled moans* oh dear. Your hands feel so good on my Inflated body. Keep going for me~.

Rico: good, Misato. Enjoy me playing with you a lot more. You're my big blimp~. *Chuckles mischievously*

Misato: *muffled* good. You look pretty sleepy, baby. Wanna cuddle on top of me~?

Rico: *nods and yawns* yes, Misato. I'm pretty tired~.

Misato: *muffled* you're so adorable when you're like this. Now, come here and relax on your blimpy Misato~.

She feels him cuddling on top of her Inflated belly, his face nestle between her breasts that are like giant pillows for him to rest his head on. Rico smiles at her, slowly closing his eyes, snoring softly as he hear her humming a soft lullaby that makes him drift to his slumber. Misato smiles at him, enjoying him using her as a human bed, closing her eyes and fall asleep, proud of herself to be his big blimp for the night.