e621.net · 5542560

It was an ideal Sunday afternoon, the skies were clear and blue, the suns warmth mixed with the gentle breeze created a cozy and relaxing air to the day.

Perfect conditions for a certain Sheppy to indulge in his favorite pastime.

The all-too familiar brown box in his hands, Levi couldn't get the grin off his face even if he wanted to, it had been a hard week for him and now, it's going to be a very 'hard' afternoon~ as he opened the door to his backyard, stepping out onto the soft grass and feeling the suns warmth on his fur. Luckily for him his neighbors were away for the summer, and the high fences provided the perfect privacy from prying eyes as he opened up the box - inside was his pride (and P-ride) and joy; that orange mass of rubber that tempted him so often like a wanting misstress, begging to be wrapped around his pelvis and pumped up until his cock is engulfed in buoyant bliss~

"Let's get you warmed up before we get into the 'big' performance" he giggled to himself as he lifted the un-inflated diaper out of its container, despite the materials, there was a bit of weight to it as inside was embedded with a cock milker, the kind that on a good day would suck you dry to the point your eyes roll up and it's lights out into the cosmos for the night. Even the act of putting it on sent chills up the Shep's spine, its cool material sliding over his soft fur as it inched closer towards his special area, reveling in each sensation and sound of squeaking, crinkling and rubbing contributing to his own 'pump growth'.

Sliding the milker over and around his stiffening member, making sure it's a secure and tight fit before adjusting the waistband around his waist, a perfect fit as always! Walking around the garden, letting the smell of the PVC and rubber emanate and arouse his senses further as the temptation to inflate and fuck gnawed at his mind like a dog with a chew-toy. "Mmmfff, they say the anticipation beforehand is what makes the finale so much better~" his words almost stuttering between huffs as his fingers splayed and played with his pamps while he playfully strutted around the garden, making sure his 'fun' got sunned all over for the best experience.

After some 'playtime' and letting the diapers warm up, now it was time for the real fun to begin~ As Levi's digits fumbled for the pullstring on the side of his pump'n'play pamps, giving it a lustful tug as the sound of hissing was instantaneous, filling the bright orange material as it began to fill out and billow around his legs, forcing out a deep erotic sigh from his muzzle. No matter how many times he had sessions in his favorite gear it always felt like the first time, causing a deep blush in his cheeks as his hands pressed into the inflating diaper, sinking into its warm rubbery material as it bounced and began to tighten around his waist, cupping around his balls and caressing his taint almost causing his knees to buckle as it continued to hiss. "Oh god~" was all he could moan as the size of his pamps swelled twice its deflated size, causing the milker to start stroking his achingly hard cock slowly, almost teasingly as he grinded against the swollen undergarments. The warmth of the sun making it soft and extra bouncy, like being engulfed in living rubber.

It felt like heaven to him, thrusting and grinding and bouncing against his favourite kit whilst it pumped away, sucking him closer and closer to a mind-blowing orgasm.
He had been saving himself all week for this, the denial of an orgasm driving him more and more depraved in his actions, desperate to cum deep inside his favourite toy. The smells of the heat treated rubber, the squeaks of his thrusts and the huffs and whimpers of his own combined into a concoction of pure lust it was almost too much to bare.
Unbeknownst to him, his trusted orange pump'n'play pamps began to swell, subtle at first with each depraved thrust and hump, little hisses here and there, matching with his rhytms as it began to tighten more and more.

-Huff- -Huff- "I-is this" -huff- " ge-OH god, getting bi-bigger?" Levi huffed, he was struggling to maintain any thought in his head from the increased pleasure of tightness entrapping his privates, he felt a rhythmic pulsing from his diaper, almost like a....heartbeat? milking and pumping and swelling to the beat of his thrusts. Panic filled his mind as he tried to pull the inflating pamps off his pelvis, hands fumbling and sinking and slipping with each distressed effort failing as it only continued to clamp onto him, only now the hissing got louder as each suck became more intense, the swelling got bigger as the warmth felt so much more inviting. It was if it was sentient, and had a taste for Levi.

All it took was one hearty pump of the milker to bring him to his knees, now only realizing just how much his diaper had swelled~ as he would've landed on his ass, instead was cushioned as he sank deep into the bright orange bliss. As hissing and squeaking surrounded his senses, the sun illuminating through his bouncy prison as he couldn't help but continue to thrust. "P-please," he whimpered, hands flailing into the swelling rubber as his moans echoed throughout. It was growing to be the size of a huge beachball as its hissing sounded like...giggling? Whatever was happening with his gear, it wanted him to cum whether he wanted to or not...

As the milker got faster and more intense, almost bouncing him into the over-swollen diapers like being trapped in a sexual bounce house of desire. All he could do was whimper and moan, plead for it to stop as he felt his balls churning and his stimulation become too much as he was about to cum, he could feel the anticipation and want coming from the sentient stroker as it was too much for him. Letting out a cry of orgasmic pleasure as thick shots of cum flooded from his sensitive cock into the milker, his balls emptying every last drop as it spilled into the confines of his diaper, the residue trickling over his balls and taint as the swelling material clenched all around his pelvis, swelling into every crevice and crack and constricting his area in bouncy bliss, almost causing Levi to pass out from the sensation alone. 'It's a good thing the neighbours aren't home' he thought to himself as his cheeks flushed.

As the spent Shep tried to catch his breath, feeling his diaper sink slightly like it itself was sighing with deflation, 'now's my chance to escape' he thought to himself, as he attempted once more to remove his captor, only to feel that tightness once more clench around his waist, as the all-too familiar hissing filled around his ears as the diaper FWOOMPED up tight again, bouncing him deeper into it as the suction resumed and forcibly milked him once more despite his protests.

"Huuuurrrr, huurrr, you certainly s-seem hungry~" he stammered out, gripping tight to the inflatable, looking around for something to help him from the predicament, only to lay his eyes on something else within the box.

A blue pair of inflatable diapers.

"Mmmmmmm-maybe there's a friend I know that could join in out FUUUUUUUU-un~" he moaned, slowly succumbing to the pleasure as the diaper began to swallow him (and his seed) up in warm orange bliss for the rest of the afternoon.