[inflation, m/f, sex, popping]

“What is that?” I asked.

My girlfriend had just returned from a shopping trip and placed upon the living room table a strange looking device. It was a shirt cylinder, shiny, with a yellow metalic paint job, about the size of a coffee mug, with a bike pump handle sticking out of the top. Printed on the yellow body of the cylinder were the letters “H.E.” in bold white font. Sticking out of the side was a thing plastic tab that said “pull me.”

“It’s a helium pumper!” She said with enthusiasm. “You pull this tab out and it starts pumping up anyone who is within 10 feet of it!”

“Pumping up? You mean like inflating them like a balloon”

“A helium balloon!” She corrected me, pointing towards the letters on the side of the canister.

“Why would you want that?” I asked, still a little skeptical at the possibility of such a device actually working.

She shrugged her shoulders and smiled at me. “I dunno, hun, why do YOU like looking at pictures of inflated celebrities on your phone?”

I blushed and nodded in approval. “You’ve got me there. Honestly I’ve always fantasized about seeing you blowing up like a balloon.” I stood up and gave her a playful squeeze. She responded with a passionate kiss and then pushed me back into my chair.

“So, how about it? Gonna pull the pin and watch me grow?” She put her hands up and behind her head, arching her back and giving me a wonderful view of her already perky breasts. “Don’t you wanna see these babies the size of Pumpkins?”

I did, in fact, want to see that very badly. How lucky I am to have such an encouraging and horny girlfriend! Without a second thought I reached forward and pulled the plastic tab.

With the tab gone, the plunger of the tank began to fall. At once my girlfriend’s nipples stood erect through her bra and shirt and she let out a surprised squeak. “Oh MY! I didn’t realize it would work so… FAST!” She cupped her breasts in anticipation of their inevitable growth.

A smile had crept up on my face as I saw that the device was working. But that smile faded when I felt something weird between my legs. I became distracted as a pleasant sensation began radiating from my crotch. As the plunger reached the bottom of its first pump I looked down in amazement as a very tall tent began protruding from my pants.

“Wait… what’s happening?” I asked through panting breaths as the pleasure died down. The plunger began to rise slowly.

“Oooh looks like I’m not the only one blowing up today!” Said my girlfriend in a husky voice. “The radius of the pumper is 10 feet after all!”

“Wait, radius? I though it was diameter! You mean I’m going to be affected too?”

“Looks like you already are! You’d better take those off before the plunger starts its second pump and… oooh my GOD! YES!”

My girlfriend’s reply cut off into a pleasurable moan as the plunger began sinking back down and her breasts and butt began to swell up. Her round perky breasts quickly swelled up into the size of large water balloons. As they grew, a faint smell of rubber wafted from her stretching clothes.

I was quickly behind her. As the plunger reached the bottom of its pump I managed to unbutton my pants just in time for my member to swell up like a long balloon between my legs. I writhed in the chair as the pleasure flowed through my body.

“Oh… my… god… it’s.. it’s so… intense!” I managed to stammer as my mind came back to me and the plunger began to lift up for a third pump.

“Yes! I wanna feel you swelling up inside me! Please play with me, I’m so turned on!” Said my girlfriend. She had climbed up onto the arms of the chair and was standing above me preparing to lower her plumped inflated hips down over my lengthy balloon dick. I couldn’t even see her face because her balloony breasts were too big to see past, but u could tell from the sounds of her voice that she was consumed by lust and excitement.

The pump reached its zenith and began to descend once more. “Oh god YESSS!!” Screamed both me and my girlfriend as the inflation caused my balloony member to swell up between her legs and she slid down onto top of me. Her whole body shuddered and convulsed as she took my fully engorged balloon into her. Her enormous breasts gently bouncing above my head like two weather balloons.

It went on like this for a while. The pump would blow us up, then give us a moment to come to ourselves as it rose back up before blowing us up again. And curiously, the pump seemed to get faster and faster as it continued. My girlfriend was riding me, bouncing up and down rhythmically with the pump, moaning, caressing, and letting out exclamations of joy as she grew bigger and bigger over me.

I was lost in my pleasure. I couldn’t think straight at all. Her rubbery folds felt amazing on my shaft and the intoxicating smell of rubber and the squeaks of our bodies sent me into a trance. Had I been paying attention I would’ve noticed that it wasn’t just her breasts and butt or my dick that was swelling, it was our entire bodies. As we inflated together in harmony, I lost the ability to hold onto her waist, as my arms shot to my sides and swelled up like sausages. My belly gave her breasts something to drum as she bounced up and down on me.

But soon even that began to slow down. Her arms and legs stuck out to the sides too as her belly pressed into mine. She was too big to move on her own now. As the pump continued to blow us up, we were stuck together. She was literally tethered by my swollen shaft. And that’s when I heard the creaking.

It was the first thing that finally snapped me back to reality. The pressure. The growing sensation of my stretched skin being pressed hard from the inside by a growing invisible force.

And then I lost contact with the chair.

We were rising up now. Two enormous round balloons joined together with My balloony dick stuck between her swollen pussy. She was lifting me up into the air and towards the ceiling.

“Oh my god, hun! I’m gonna… I’m gonna cum! I’m gonna burst! Im gonna blow!” Cried out my girlfriend in excitement. And I could feel it too. Her body was reaching a tipping point. She was visibly vibrating from the strain, jerking me off as she shook involuntarily. All I could do was moan back in resignation as I grew closer and closer to my own climax.

“Blow me apart!” Cried out my girlfriend through gasps of pleasure. “Shoot your seed into me and blow me to oblivion!”

I obliged.

Just as I came hard into my balloony girlfriend I felt her convulse and scream with pleasure before there was a thunderous KABOOM! and she exploded into a torrent of rubbery shards and scraps that swirled around the room like a tornado.

The force of her detonation sent my round balloony body back down into my chair. I watched as the air about me filled with tiny stars and the swirls of rubbery confetti of my burst girlfriend. Out of the corner of my eyes I saw the plunger of the pumper descend one final time. I orgasmed a second time and then joined my girlfriend as a pile of scraps on the floor.