All in all, it was a fairly standard evening for the nude Dalmatian. Cadeyrn took in the mail after work, made dinner, lounged around for a few hours on his spotted hide, and fooled around watching TV and chatting online. By the time midnight started to rear its ugly head, he knew that he didn’t have much more time before falling asleep. Sure, watching another episode of his show with his favorite actor would be enjoyable, but he remembered a little treat his friend brought over the other week. 

As he made his way to his bedroom closet, the towering spotted canine remembered that he wanted to “save up” before he used it properly. Considering he had refrained from his usual nighttime pleasures, he was just glad that he remembered the plaything his ferret friend let him borrow. 

Cadeyrn couldn’t help but laugh as he started at the tool again, having retrieved it from the rest of his collection. It was a bit of an imposing monster of a dildo, but Psi assured him that it was custom-made for those people who happened to have more ample backsides than most. Given that Psi would need six hands to fully grip the entirety of Cadeyrn’s rump, he knew well of the pup’s plight. As much as the dog loved his current collection, he was always searching for something to give him just a little bit more in the joy department. He couldn’t help that his bulbous ass sometimes made it challenging to use his dildos outside of the shower. That and he sometimes threw his shoulder out just trying to remove some of them at night, if not the next morning.

Remembering some of Psi’s practical advice on how best to use the toy, he eyed the four feet of empty space on the wall opposite his bed, right next to his bedroom door. Most other toys wouldn’t practically adhere to most surfaces, but the suction cup on the base of this silver-hued beast worked like a charm against the drywall. It gripped along the surface as if its life depended on it, and Cadeyrn couldn’t help but grin at the immense silicone erection jutting out from his wall. 

The lanky, bottom-heavy canine eyed the metallic color of the shaft as it descended to the base, right as he started to slather it all with lube. The toy was canine in structure, with a thin tip leading to quite a profoundly rotund head. The rest of its length was a bit meatier than his other toys, but it seemed doable. It also sported a humongous knot down by the bas. With nearly ten full inches worth of thick staff to work down, not counting the few extra inches from the head and knot combined, Cadeyrn was practically assured an amazing time.

Seeing this beauty on display before him reminded him of Psi’s promise. It was something along the lines of this toy really adding a lot to having fun in the bedroom, and for days on end. Whatever it was specifically didn’t matter. All he knew was that they both blushed deeply after he said it, and the blood flowing through his cheeks reached a near fever-pitch when Psi finally pulled it out of his bag and showed it off on Cadeyrn’s bedspread.

“Let’s see if Psi was exaggerating with this thing,” Cadeyrn mused to himself as he started to back up his hindquarters onto the monster. 

At first it was pretty much like any other sex toy he had owned. No matter what size or shape, the silicone had to first spread those globe-like cheeks apart as the length crept past the inner portion of his cheeks. Considering people assumed that Cadeyrn was smuggling to huge watermelons in the seat of his pants whenever he was clothed, it always took a few seconds for the head to finally reach its destination. Cadeyrn couldn’t help but relish in that anticipation, knowing he was fully in charge as he eased the toy closer to his tailhole, only to let it linger a fraction of an inch away. 

After letting out a blissful sigh, he finally made contact with the very tip of the dildo. He could tell that he coated it well, even better than he tended to do, since it parted his ring open almost immediately and slipped right in. There was nothing to worry about on his end, since his insides welcomed his temporary guest with fervor. As his tight star yawned open all the more to accept the rest of the head, he couldn’t help but notice his innards weren’t as stressed as he thought they would be. Given that the head was around a hair’s width away from being as thick as the biggest knot he had previously taken, he thought this was going to pose more of a problem for him.

He couldn’t help but moan as the rest of his backdoor gratefully accepted inch after inch of staff. His folds gripped along each incoming bit with all of their might, pausing slightly after each backward motion, knowing that soon enough he would feel the knot’s presense along the edge of his blubbery ass. After a few dozen more rocking motions the pup was saddened to feel the literal end of the toy come so soon. Thrusting back and forth only brought the end closer until it met up along his opening. 

The knot itself was actually more intimidating than he had originally anticipated. It seemed like it would be easily surmountable from a glance, but the Dalmatian was filled with a mixture of excitement and trepidation as the spherical protuberance was so massive it actually started to rub along the underside of his balls. The thrill started to drive the canine wild and, feeling as if he could support the rest of his body with his legs and his remaining arm, felt the moment would be best spent gripping along his own untended cock for a bit.

Each jerk along his rigid pole felt like heaven, and not simply because Cadeyrn was dripping out precum at a larger rate than usual. As each hot droplet of clear fluid slithered and spread along his dick, the rest of his body, particular his balls, were set into motion. The rocking sensation was miniscule compared to his earlier bucking efforts, but each slap of his family jewels against the knot only seemed to rile him up further. As he shut his eyes he could easily imagine himself being mounted by a massive beast, lost in animalistic lust, as that unyielding knot behind him refused to back away despite his balls constantly driving into them. 

Before he knew it, both of his cheeks popped suddenly against the wall and with quite a thud. His ring gaped open and easily welcomed the final few inches of the toy all at once in a sudden gulp. Cadeyrn’s thin whip of a tail started to wag thunderously behind him, feeling so immensely full while his ring gripped along the other side of the knot with all of its might, not wanting to let it go for anything in the world. The canine was liable to orgasm any second, and he already knew it was going to be the fiercest one he had in months.

Little did he realize, however, that the foot-long dildo behind him was going to climax first.

Psi had never mentioned that particular feature, but at that point it didn’t matter. Cadeyrn howled like a creature possessed as he felt luscious fluids starting to paint along his inner walls. The rich streams of milk splashed well beyond his prostate, all the while noticing that he wanted to cum at least twice as hard as before. As the dildo itself let loose with its plentiful stores within him, he could feel the very top of the knot itself rub constantly against his prostate, finally realizing the true scope of the toy’s design.

As the near-quart worth of fluid shot deep into Cadeyrn’s recesses, the dog was only too happy to paint his navy carpet with his own cream. His paw shot away from his crotch just to keep him stable on the floor, holding himself up on all fours as best he could. The Dalmatian writhed and squirmed along the silicone length, gleefully spilling each shot of his own batter all over the carpet and the front of his bed. He was shocked to see it was arcing upward almost to his chest, shocked that he was easily causing a mess three, maybe four good feet in front of him. His balls ached onward for further release, and after a god minute and a half of an orgasm he finally felt somewhat sated.

Just as Cadeyrn was panting and starting to recover from his own plentiful outburst, right before the seal gave way on the suction cup, he felt a bit of a tingle all throughout his body. It was as if his short white and black hairs were standing on end, as if there was a quick chill that rushed into the room. He sighed in relief as the sensation left almost as quickly as it came upon him, thinking it was nothing at all. He hadn’t had an orgasm like that in months, if not years, so it was probably due to being physically exhausted.

As the suction between the cup and the wall gave way, Cadeyrn felt a bit off-balance. Since he had since stopped focusing on pressing his cheeks against the wall itself in a fit of lust, his derriere slid down the wall and onto the floor. However, rather than a quiet thump along the carpet, Cadeyrn heard his rump crash thunderously against the floor. He could have sworn he heard a bit of cracking as well.

Whipping his head behind him as fast as he could to survey for damage, he nearly dropped his jaw in shock. If it wasn’t just for the intense snap he had just heard, he never would have thought he did any damage to the wall itself. There was a massive crack along the wall, as if he and his friends had charged into it at full force. It didn’t seem too horrible near the top, but as his eyes glanced downward, he not only saw that it started to widen all the more, but that there was something greater to blame.

Cadeyrn’s ass was always a generous size before, to the point where he had trouble sitting in most standard chairs. Now, however, even glancing behind him he could estimate that each cheek was nearly twice as large as before. Another quick look at his legs confirmed his findings; While his upper body was svelte and built like an athletic swimmer, his bottom half was now enormous to the point where he was worried that his butt wouldn’t quite fit on a Queen mattress, and each of his legs were nearly as thick as his torso in order to support all of that extra weight.

Shocked as he might have been, he couldn’t help but think back to what Psi had said. Maybe the “days on end” portion he alluded to wasn’t entirely about having fun with the toy. Cadeyrn gave his backside a wiggle, only to feel the hundred pounds of extra fat or so rumble around with newfound heft. 

It was only then that he realized that, even though the dildo was quite immense, all of whatever it shot deep within him right before he climaxed was rapidly being absorbed into his system. Further, given that he had grown twice as curvaceous back there, there was no way he would be able to fish out the toy himself by morning, if at all.

With the potential trouble starting to weigh down on him, the naked, soaked Dalmatian crawled his way across the room to his nightstand to give Psi a call. After all of this, if the ferret couldn’t help explain a few things over the phone he was going to have to come over and help him out, 2 AM be damned. 

Little did the playful canine know, however, was that Psi was quite right about the enjoyment lasting for a while. In fact, the ferret had been staying up late most nights with his cell phone by his side, fully expecting a call. The spotted dog was definitely going to have a much more robust tush for the better part of several days, and his mustelid friend was all ready to drive on over and help him out. He even had a few massive pairs of jeans and slacks, fully ironed and waiting, for him to borrow in the interim.

The only real issue was that it wasn’t likely for the dildo to come out of its own accord for the better part of the next day or so. At least it would offer Cadeyrn a bit more ecstasy than usual during work the next day.