Absolutely.

"I'm pretty sure rejecting at this point would be quite disrespectful for both of you," you reply back. "If you want to, you can go for it. Let's have some fun."

"Okay..." Stacy whispers. "...Okay..." She rises off of your stomach on shaky limbs before lining her lower lips above your junk. Slowly, she moves down until her entrance is caressing your glans. Your dick doesn't waste any time and begins slowly wobbling back and forth, teasing the clerk's opening around. Stacy bites her moan under check, the feeling of being played in such a way completely foreign to her. "You... you're not the one d-doing this, r-right?" her voice wavy.

"Afraid not," you reply as you just bask in the pleasant feeling. "This is a higher power's doing."

"And said higher power's getting bored," Ava's voice echoes.

Stacy releases a short yelp as I feel her crash on top of you, your hard penis impaling completely inside her. Her vagina's very nicely hugging your sensitive rod intimately, yet this doesn't compare to your divine girlfriend's, of course. It does surprise you when your rubber bed releases a strong hiss, the latex under you stretching a good size bigger in an instant and sending both of you bouncing slightly higher. You're not totally sure what happened, but Stacy's eyes are as wide as saucers as she looks down at you. "Di– did you feel that?"

"Feel... what, exactly?"

The clerk slowly raises her hips off of your dick before slamming down once more, sending a new wave of bliss to your brain. In reaction, the balloon under you once again surges bigger with a loud hiss. Stacy's voice breaks the silence. "Holy..." She rises off of you again, and slams down. The balloon expands. "...shit..." And she bounces on your dick again, the balloon grows. "...yes, YES!!"

Which seems to be when the girl riding you breaks since she begins humping on your sex rod as if her life depends on it. As a result, the huge party toy under you rapidly inflates bigger, a fresh new hiss greeting your ears with each of the clerk's own bounce. She was literally pumping the balloon bigger by pumping your dick with her vagina.

You look around while all of this happens, trying to gauge the latex toy's size, but it was swelling so fast you couldn't give a correct guess before it'd be wrong. You look up and above Stacy's blissful face to notice the ceiling of the party store coming to greet you. Had this balloon already filled the whole place up?

"Eh, heh heh... Stacy, we seem to ha– HMMPH!" Your speech gets interrupted by the clerk slamming onto you and proceeds to kiss you furiously, her moans vibrating down your throat. The balloons tied to your armpits pooled above you, unable to float any higher with the ceiling in the way. You decide to trust Ava yourself and just melt under her kiss, doing your best to return it in kind. You hug the clerk tightly. Not too long after that, the balloon under you presses both of you against the balloons on the ceiling as the latex molds around your body. You can hear the girl trapped with you moaning harder before her vagina grips your penis in a vice. It seems like she has reached her tipping point.

Don't feel left out, comes Ava's voice in your ears, as you immediately reach orgasm yourself, sending waves of sperm deep inside her. Of course, this makes Stacy moans even harder, your hot fluids being injected right into her core seems to be doing a number on her.

At the seconds passes, your orgasms keeps going and Stacy's folds keeps milking you, both of you spasming in unending pleasures. You have no idea how much time passes with the way you are trapped, nor the amount of fluids you inject in the moaning clerk. You just keep riding the blissful tsunami until, eventually, the feeling subsides.

The balloons above the both of you gently shrinks smaller with a gentle hiss. You are cradled close to the ceiling by the store sized balloon, your arms still lovingly hugging the loudly breathing clerk. "That was... wow..." Stacy breaks the silence.

"Yeah," you quietly, dumbly add. "Did... you enjoy this?"

"Stupid question – that was the greatest thing that has ever happened to me! I wish I could do this every day."

"Speaking of," Ava's voice projected around us. The purple balloon starts hissing, the ceiling moving away as the latex underneath us shrinks down. "I vote we keep her. She's fun to play with, and would be the perfect first recruit to your sex club."

"My sex-what-now?" you replies, confused.

"Kinda like sex toys, isn't that neat? You get to play with her whenever you want, and she'll never get bored while on standby, if you catch my drift." A moan escapes Stacy at that sentence, as if she's approving. "So, whaddya say, stud?"

You look at the restful face of Stacy, still slouching on your body with a light smile on her face and her eyes closed. You're not totally sure what to do, should you really just snatch any girl you fancy? "What's your opinion on this?" you tap the clerk's forehead, getting her attention.

Her eyes open, looking at yours lazily. "If it means more balloon play of this caliber, absolutely count me in."