Shining becomes a buttslut and gets a taste of himself...

The Unicorn groaned, wiggling as he felt The Root straddle him again, her huge ass descending on the back of his head and neck, his horn sandwiched between her rock hard asscheeks. The horn looked puny between her big, chiselled cheeks as she bent over, her massive tits squashing into his ass as she inspected the beads she'd just wedged up them.

'Make this bigger. Much bigger.' She commanded, her voice low as she spread Shining's ass cheeks, squishing and massaging his shield cutie mark as she flicked the ring that connected to the anal beads.

Shining gasped and twitched, still wiggling as he gasped out, 'B-bigger? Oouynnff!'

His question was rewarded with a sharp slap on the ass before The Root raised her own mighty rear before bringing it down forcefully on Shining's head. Not enough to hurt or do damage but for a moment all of Shining's senses were dominated by her ass.

'Eyup...and as a reward for how sexy y’all made me, ya can make yourself into a real buttslut so ya properly enjoy yourself...'

Shining wasted no time, eager to not only do as The Root asked but to push himself further into lewdness. The words spilled out of his mouth eagerly as The Root casually yet effectively plays with his balls.

'Do I love having things shoved up my ass? Can the slightest stimulation on my sensitive, oversized prostate put me on the verge of cumming in seconds? Is my asshole-my whole body-both super tight and incredibly...wait no, impossibly flexible and stretchy to perfectly fit this massive toy?'

Even prepared, Shining was caught off guard by the changes. His entire body thrumbed as an explosion of pleasure and insensate tingles that rippled out from his asshole as it flexed and tightened around the beads powerfully.

His toes curled, entire body flexing and tensing as it became preternaturally flexible as, to Shining's surprise and delight, dozens of memories of anal experimentation began to pop into his mind.

Cadance wasn't too keen on it he was disheartened to learn, both giving and receiving but that could change.

His new "crush" on Chrysalis only intensified as it became obvious from the memories popping into his head that she hadn't had any such qualms when impersonating Shining's wife and had revelled in taking Shining's mind-controlled ass almost every night with a strap.

He felt the tingles, the pressure in his asshole increases exponentially as his prostate supercharged and bloated, squashing into the swelling beads. The first, deepest bead, which had been the size of a marble was now as big as a tennis ball.

Even The Root seemed shocked as Shining gaped, eyes twitching and tongue lolling out as the beads kept growing, pushing deeper into his body, his toned stomach bulging as the bead shift upwards, his elastic body accommodating.

Shining couldn't hold out, not at all, as the largest bead, now almost the size of a net ball struggled to escape from his crushing vice of an asshole.

'Ggugnnna-Cccu-Cummm-' He drooled across the cave floor as The Root reached around Shining's ass and gripped it firmly as her cunt drooled all over his back.

'Ya'll gonna make sure it's a big, heavy load ain't ya. This here is the first orgasm ah ever gave a fella and ah want to make sure ah get mah fill!'

Shining nodded deliriously, quickly and barely thinking as he moans out, 'Huge load...It-Ngh-will be a massive, sticky, tasty load, won't it?' He falls down writhing and spasming as The Root edges and skilfully denies him his orgasm despite the fullness of his ass.

'From a big, meaty schlong and a set of fat, full balls.'

'They are! They are-Hhahah-Aren't they?'

The Root's strokes became quicker and more vigorous as she flips him once again, Shining having a bare moment to watch The Root's Apple covered ass descend onto his face. She coos and giggles at the illusion that she's tugging and jerking the cock bigger and bigger as Shining's modest pecker starts to girth and lengthen. Fat veins bulge up the weight length, the medial ring throbbing as the white, flared horse cock becomes a huge, sweaty mare breaker. The base was framed by a bulging, taut set of balls, each the size of a large fist and bulging with virile spunk.

The Root smirks, reaching out and squeezing his balls, the white gonads overflowing from between her fingers as she slaps the fat cock against his taut stomach as she brings him past the point of no return.

'Cum now.'

Shining obliges, letting out a loud, guttural moan that echoes off the cavern walls as his balls bulge then clench hard as he releases at long last!

But The Root has one final trick up her sleeve!

She was curious just how flexible and stretchy Shining really was!

The Root dismounted Shining, catching a glimpse of Shining's handsome face twisted in a look of pure depraved bliss as his cock surges. Shining has a glimpse of The Root's evil smile, flashing at him through the pleasure haze before she grabs him by the horn, the other hand gripping the base of his cock.

'Now don't forget to swallow Sugercube~'

Then she releases the straps holding Shining's legs together and then folds him in half.

Thanks to his previous change that ensured his flexibility, coupled with The Root's immense strength, Shining has only a bare second to even think before The Root effortlessly brings his head down and his groin up to meet.

'Wha-Glluurhk!'

Shining's immense cock, now almost as thick as coke can and only slightly shorter than his forearm drives into his mouth and easily sliding down his stretchy throat as The Root makes him auto fellate himself.

His eyes go wide, watering as his throat bulges with his own stallionhood as his heaving balls and driven into his nose. He twitches, entire body spasming as The Root easily folds his legs behind his head and reapplies the straps in the new position.

The Root marvelled at Shining's flexibility, the tall, formerly dignified captain of the guard folded so neatly into a ball so he could fellate himself. Shining for his part moaned eyes rolling as the sensation of his humming only enhanced the already mind-bending orgasm. His balls bulge and then clench and the feeling of his mouth and throat bulging to accommodate his own monster dick only seemed to increase the size and power of the orgasm.

'MMph!' The grunt of release came out from around Shining's shaft with explosive power as he tenses against his binds as he came. A gout of thick gummy jism twice as large as a normal stallion’s entire load dumped itself out of Shining's fat dick and into his stomach. The trim muscled tummy bulged as the second blast struck and Shining shifted, his cock sliding delightfully up his tight throat as the third jet immediately fills his mouth to overflowing. His cheeks bulge, eyes crossing and a blissful grin crossing his face as his sense of taste is dominated by his own ultra tasty cum.

His defined stomach bulges slightly as her jerks his dick back down his throat, adoring the feeling of his shaft sliding back and forth along his throat as it bulged and spasmed. Spunk spattered his chest and paunch of a stomach as yet more spunk overflows from his mouth, coating his body with the sticky sperm.

It goes on and on, his balls seemingly infinite and Shining welcomed it, especially when The Root descends to massage his balls, milking out every last drop and dumping it into Shining's slutty throat before finally it ends...

'Mpphh...Such a nasty little slut...' The Root scoffs as she watches Shining moan and slobber and worship his own dick. 'Hmm...Maybe ah should chest carry you into town like this? Dump yah in front of Cadance and Twi so they can see exactly what kind of bitch their precious Shining is?'

Shining whined and giggled, toes clenching as an aftershock racked his body, squeezing the last bit of spunk from his balls as The Root unclipped his legs, freeing them from behind his head.

Shining reached up and grabbed his own ass, forcing himself to remain on his own dick for several moments before at last popping free of the flagging dick with a satisfied sigh.

'That was mean.' He finally said, licking the spunk off his body and fingers as Root laid down next to him, drawing him into her big, muscled body and cuddling him against her tits.

'Turnabout is fair play pard'ner~' The Root purred, her voice suggestive as she cleaned Shining with her tongue.

'You don't have a dick.' Shining countered, snuggling into The Root's huge tits.

'Yet.' The Root giggled as she ran her hands up and down Shining's thighs, 'What ya planning now Sugercube?'

'I've got some ideas...'

[Open to suggestions again! Who knows what will happen! Again, can't guarantee I'll follow through on them but I like hearing your ideas!]