A car pulls up in front of the apartment building, a small yellow lizard already boarding it as soon as it stops moving. "Hiya Gil, hope we didnt leave you waiting for too long" a red and yellow dragon asks from inside the car as the door clicks behind Gilu. "Oh no you were pretty much on time hehe, no worries Rilo" the lizard smiled, setting his bag at his feet and giving a quick hug to Rilo, the dragon huggin back. Rilo taps the glass like walla in between the back seats and the front ones, the driver nodding and starting to drive off along the road. The two talk for a bit about the general stuff like whats new and their expectations for the convention, when suddenly Gilu feels something cold and made of metal touch his leg, as he looks down its a small compressor like machine with a hose attached to it "Oh.." the dragon lets out as he notices it too "..i was hoping to keep it for tonight in our room but i guess if it already out" he quickly picks it up and sets it next to him, the hose looking like its out of latex or some similar rubbery material. "..Why are you bringing your compressor with you?" Gilu asked genuinely confused "Well..ya know that whole inflation thing i got into recently, its been pretty addictive honestly, and so i tought i might bring it along and.. try to prehaps talk you into trying it out too?"
There's a moment of silence between the both of them, before the dragon giggles awkwardly to try and break the silence "..im sorry i know this was dumb heh-" before he can say anything else though the lizard grabs the hose himself and just casually pins the dragon to the cardoor "G-Gil im so-!" "Shh, im not mad dumbo, but im not gonna try it out neither" he slowly takes the hose and brings it under the dragons tail "Wha- t-then why are you- eep!!" the dragon squeals a little as the hose is stuck up his tailhole, imidiet blush appearing "I dont want to try it because i know how it feels like, why do you think i was so causual talking about it with you? I just dont enjoy the feeling as much, though what i do enjoy is inflating others~" he says in a semi lewd tone, smiling mischievously as he brings his hand to the compressor "B-But why didnt you tell me then!" "I didnt wanna break the immersion, you are so cute when you're all embarrassed talking about something to me~" with a simple flick the compressor springs alive, the dragon quickly feeling pressure build in his bum as the air starts to flow "Aaah G-Gil we shouldn't do it here~" the dragon struggles a little as the lizard lets him go, yet keeps the pump near himself "And miss out on maximum fun? No way dude" he giggles and lays back "I want you to become a balloon right here in this car, so when we walk out of the car and other people see us they imidietly know your true look~" the lizard gently rubs the dragons pressured, slowly rising belly. "..ngh, a-are you sure i wont embarrass you like this?" the lizard leans in and reassuringly licks the dragons snout "totally sure~" Rilo then nods as he relaxes his body and lets the air simply enter him however it wants.
As the ride goes on, Rilo's tummy gets pressured with more air and bubbles, before giving in and starting to fill up properly. At first the growth is slow and small, but soon with a few grunts and deep breaths the dragon balloon starts to grow bigger and greater. The lizard gropes himself at the sight, clearly enjoying doing so as his pants soon bulge out with an easily recognisable shape of a member, throbbing. Rilo's head gets cloudier with every little bit of air that pushes into his belly, mostly blinded by enjoyment he forgets about the fact he's in a car and gently moans, almost loosing himself and mouning loudly before muting himself, remembering the driver is still in front. 
A few more minutes pass, and Rilo, as gone as he is, decides to speak up as his size reaches a pregnancy size "Ah G-Gil i...i'm getting really tight, i feel a bit of pain in my lower belly" he rubs the hurting area to try and ease up the pain, yet failing. "Mmm i bet, your stomach's poking out of your sweater~" Gilu points out the clear stretch on the sweater as well, though himself wasnt the one to talk as his pants got pretty visibly wet around his crotch from preing so much at the sight. "P-Please can we just stop, i-i dont wanna get too big and let gas out on the way out of the car and s-such.." The dragon was getting visibly scared as his tummy grew and started to hurt, the tightness getting dangerous. "Don't worry balloon, just a few more minutes~" just as the lizard said so, creaks started to errupt out of his friend's stomach, and the dangerous clearly indicative kind. "oh god p-please Gil stop the puuuurp!-" Rilo quickly covered his maw as a burp flew out of him, making him all bubnly inside as well "C-Come on i cant hold much more..~" Gil sighed and as much of an annoyance this was to him, he turned flickered off the pump, making his friend huff out loudly with relief, painful yet blissful moans stil lescaping him "T-Thank you aaa..christ this must be a new record for me...i-i feel honestly on the edge..~" the lizard crawled his way over to hug his friend from the side with one arm, at first it seemed sweet, before his other arm with a sharp claw poked the dragons belly" You dont even know how close i was without even pawing off, you owe me now for this blue ball, you got it?~"
The dragon squealed in pain at the sharp claw and with a loud gulp let out quietly "Y-Yes Gilu..i owe you~"