Why not.

You let out a sigh, the last part of your humanity still fighting, thinking this is messed up. In the end, though, Ava could just revert all of this if it goes too far.

"Fine," you reluctantly let out as the balloon under you remolds and helps you both to your feet, "except our apartment won't be big enough if we start bringing more people in."

"Already taken care of," Ava adds. "Just bring her back and I'll have a personalized room prepared all for herself." From the back of the store, you see a flock of small colorful things floating towards you before stopping in front of Stacy. "Choose your favorite color, my dear."

After a moment, you notice the things are deflated bunny head balloons presented to the clerk in a grid. A few seconds later, she pokes the pinkest one of the bunch. The chosen balloon swiftly dives below Stacy. With a loud huff, the balloon expands between her still naked legs. "Nyaah! Wai–" The balloon grows again, lightly prying her legs apart. "S-stop–" And surges once again, this time both the balloon's ears jumps up as they're filled, pinching the clerk's body between their twin cylinders of air. "AAH~ W-what are yo–" And one final growth as Stacy's lifted clean off of the floor, slowly floating upwards atop the big squishy bunny's head. Her ascend is only halted from a ribbon tied around your wrist. Lastly, the remaining balloons Stacy didn't pick dash towards the flabbergasted girl and stash themselves into her bra, to which she responds by lightly moaning and cooing in approval, hugging the big long squishy ear right in front of her.

"One fun party store clerk for takeout!" Ava proclaims.

"What about the store? Won't she get in trouble if we leave it unattended?"

Ava let out a sigh. "Does it really matter in a world where I can do anything? But if it makes you feel better..." Your head is forced to look in the direction of the counter where you see Stacy waving back at you with a smile, fully clothed and seemingly oblivious of the situation. "It's a clone, she'll live her life like the original did and she will be completely oblivious about what happened today once you get out. Can we finally be on our way?"

You decide to not press the matter further to not infuriate the godlike being and proceeds to walk out of the store with your own cooing naked clerk perched on the pink balloon floating above you. "Sorry, Ava. I have no idea how long it took you to cope with your new abilities, but we're just shy of the second day for me. Just give me a moment, and it should eventually be my new normal as well."

"Yeah, I know," she responds with a sigh. "I shouldn't snap at you, I just wish you'd just embrace how limitless and consequence-free our situation is so we can have some fun together."

You walk back towards your apartment, somewhat wondering what she's done to the place. Unless... you have somewhere else you want to go instead? Or maybe another idea?