After a long discussion we have narrowed it down to 3 runners-up, picking a winner has become a little more harder than expected so I’m calling on you guys to help!
Out of these three ideas comments your favourite out of A B or C.

A.  kupocalypse

Lucy ( http://www.furaffinity.net/view/19116474/ - http://www.furaffinity.net/view/24615189/ ) got pumped up pretty big one way or the other (probably with water? Air is fine, too though) and both the fox and lizard are trying to help her through a door.
She's seriously stuck, the doorframe wedged between her oversized belly and even larger hips/rump. Both of them are standing on one side, pushing at either immense cheek to try and squeeze her through.
All the while the two are argueing a la "I told you we shouldn't have started inside!" and "Wait, did you actually remove the hose?!" because on the other side of the door, Lucy's still stuck with the hose in her mouth and arms too thick to pull it out, filling up even bigger while Kleiny and Fez are bickering and trying to shove her through.

B.  krauser018

The characters would be my balloon wolf Nikata: https://www.furaffinity.net/view/23245580/
And Lucille

As for the idea, since Nikata can inflate herself just by inhaling air (example! https://www.furaffinity.net/view/23279578/ ) she could give Lucille a nice puffkiss, making her quite huge and round to show Addison just how good she is at blowing balloons! but she over did it quite a bit and in the process Addison is now squished under the huge balloon belly of Lucille (or could be another place too!)

C.  TaraBurst

My idea gonna be bassed on Picture from your gallery for better view:
http://www.furaffinity.net/view/24702229/
Idea gonna be with my Snow Leopard Nikki: http://www.furaffinity.net/view/24161800/

My idea is gym scene with Ivy as one who worksout with on the gym. Hoses are connected to newly instaled on gym, blue pumps. Ivy knows that Korine is somewhere on the gym so she trys her best to impress her by trying to lift as much as possible or as good as possible while both pumps are connected to Nikki, her coach that gives her instruction how to press-squat with that mashine. Picture scene would be around Ivy blushing while seeing Korine walking by with wink towards fennec. At the same time, Nikki would be there with quite round belly, tight and creaking. Showing Ivy to stop while fennec girl seams to not even paying attention to what Coach telling her, still pumping the iron to impress Korine.
Korine can wear her usual gym suit while for Ivy, i would go for Purple Sport Bra with skull on it like she own on her refference picture. Along with it, maybe black yoga pants.
Aditonal stuff on picture: Around the press gonna lay the gym bag owned by Ivy with the same skull picture on it and black lethal jacket. From the bag could peak Potato-Fez with Ivy's bra on the face, moving his small hands to sides like she wa blind or something (bra covers his eyes).
Nikki can wear yellow Sport Bra and Black Yoga pants that splits under pressure.
Nikki on this picture can be full-body inflated.



Thank you so much for everyone for entering there were so many good ideas I wish I could commission them all! Better luck next time!