Kinky Kin Exploration

Hoofsteps echoed in the stairway with excitement as the siblings made their way to Twilight's bedroom. Bags in tow with their magic as they raced up the curved pathway. Once in the bedroom, they set down their bags, giddy with glee as they took things out as quickly as they could. Spreading their new treasure across the floor to view everything they had picked out for their special time together.

"I can't wait anymore B.B.B.F.F., so much to try." Twilight snorted as she tried to contain her joyous attitude. Her eyes caught sight of the spreader bar box as Shining set it down. "I don't remember grabbing that?"

Shining set the bottle of lube down and tossed the empty bag to the side. "I thought it looked like something interesting to use so I grabbed it." He picked up the box with the griffin on the front again, his mind still wondering what was inside it. "So what do we start with? There is so much here and so much time to spend."

Twilight stood up and walked around the pile they had laid out, eyeing over the objects one by one until she stopped behind Shining. "I think we start with getting dressed up and get the make-over done with." She slyly smiled as she leaned her head over Shining's shoulder. Her magic picked up the white and blue set, bringing it over to the stallion. "I think you'll look cute in this, so let's get started."

The stallion gulped away at the spit building in his mouth as his nerves went wild. His sister picked him up onto his hooves with her magic before she started to prod away with her hoof at his flank region. "Still a bit nervous on this Twilight, they look nice just very girly. Plus I've never worn anything like this before, only looked at them."

"Don't worry, I can help you with that," Twilight whispered into the stallion's ear as she took the socks off the hanger first. "Now lift your legs, one by one and we'll start with the simple things first." Her magic wielded the first striped sock behind his left rear leg as he lifted it. The sock slid up his thicker rear leg with ease, stretching up to his thigh and stopping with a snuggle of softness from the cotton fabric. The next rear leg went on with the same ease, giving Shining a warm feeling around his legs. Next, she slid the panties up his legs, slipping his tail through the hole in the back for it, his balls sat slightly cramped but still able to move around while his sheath poked out past the waistband, and with a swift slap, she had placed the bow into his mane. "There, all done. You look like a real mare Shining, minus you know," she said as she pointed to his sheath sticking out.

Shining Armor blushed at his sister's words, so he trotted over to the mirror on the wall to look for himself. Seeing himself in the mirror with the light blue panties snugly wrapped around his derriere made him turn red even further. They felt great with even with them hugging his genitals closely but seeing himself wearing them felt even better. "I guess you are right Twily. I do look almost like a real mare in these."

While the stallion looked himself over in the mirror, Twilight had begun dressing with the black set of lingerie she had picked out. Normally she wouldn't wear such pedantic things but this time was different, it was a special time to spend with her brother and a time worth dressing up for. She responded to him with a flick of his tail, throwing it up in the air to see the anal camel-toe he was sporting with how tight his clothing was. "Just about as good, what do you think of mine?" Twilight turned around and gave a sensual sway to her tail, showing off her wet pussy through the see-through fabric and the pink gemstone butt-plug in her pucker.

"You look... you look gorgeous Twily. Just like the older mares with that design." He took a few steps forward and placed his hoof against the lacy garter and rubbed it, getting the familiar feeling that he had when he dug through his own mother's lingerie drawer.

Twilight blushed slightly before gently pushing his hoof away with hers. "Alright mister hooves, still need to get your make-up on to make you a proper mare, then we can move into the real fun." Picking up the tube of lipstick, she pulled off the cap and twisted the stick up, showing off the glittery blue color inside. "Now hold still while I apply this, otherwise it's going to be annoying washing it off and doing it again."

Shining sat still with his lips puckered, feeling the smoothness of the lipstick rub against them with slow but steady swipes, painting his lips the sparkling blue. With his eyes closed, he waited for Twilight to finish her work, taking care not to move a single muscle lest he ruin her work and waste some of their time. When the lipstick was pulled away from his lips he felt pressure against his eyelids as she proceeded to put on the eye-shadow, completing his look for their time together.

As she finished stroking the last few bits of eye-shadow, Twilight smiled at her handy work and how cute her brother looked. "Done B.B.B.F.F., take a look." Twilight watched with anticipation as her brother looked into the mirror once again eyeing over her handy work.

Puckering his lips, Shining blew a kiss to the mirror and winked. His conversion from stallion to mare seemed to be complete, and his heart raced with glee at how well he looked. Almost like he could pull this off on his own without an issue. "I love it Twily. It's perfect, the color choice fits so well and it doesn't feel awkward at all." He pranced in place, like a giddy girl with excitement as he posed to the mirror, showing off himself to himself.

Twilight rolled her eyes as she finished putting on her eye-shadow, giving a nice purplish-pink coloration. "Alright now, calm down. We haven't even started with the good part. I know you've been eyeing that box for a bit since we got it in the store. Go ahead and open it, let's see what we're going to have fun with."

Shining's smile could have broken a window with how far it stretched finally being able to open the mystery box. He picked up the tantalizing object and looked it over one more time. The griffin still giving him chills as he looked at it. Lifting the small cardboard flap inside sat a black bag covering the dildo inside. He picked it up, letting the box fall to the ground, and tugged at the plastic covering. When it tore he was greeted by an average-sized dildo in a mix of purple and green shaped like nothing he had seen before. It had a pointed tip with spines trickling down the head until it slipped off onto the main shaft which turned smooth with small bumps and ended in a thicker base. "I... what... what is it?"

Using her magic, Twilight picked the dildo from her brother's hooves and held it in front of her. "I'm not sure what creature it's from or designed after, but I do know the colors look like Spike." She let out a giggle at the idea of this being what Spike would be sporting for his dick. "Either way, this is what we have to work with so it'll be fun either way." She slipped the dildo into the hole of the strap on, the tapered base snapping into the small, holding system with ease. Stepping into the leg holes, she pulled the strap on up over her hips and secured the device into place. The dildo hanging a bit low on her but still looking like it should be coming from a sheath.

Watching as the dildo jiggled up and down as Twilight moved around, Shining felt that same feeling he did when he saw the two stallions going at it. His heartbeat picked up, sweat beaded on his brow, and his penis started to erect. "I... umm... just... wow," he stuttered out as his eyes stayed glued to the waving faux phallus.

Twilight jiggled it around a bit more before coming to a stop in front of shining with the bottle of lubrication. "Okay Shining, time to assume the position. Facedown, ass up, and all that jazz. I hope this works well enough." She trotted behind her brother as he bent his face towards the floor and raised his flank higher into the air. She took hold of his panties in her teeth and pulled them down to reveal his black puckered ponut slightly winking in anticipation for the event.
Popping the top of the bottle the smell of sweet chocolate wafted up into Twilight's nostrils, taking in the delicious scent as she turned it over and poured the clear liquid onto her brother's butt.

Shining shivered at the semi-cold fluid drizzling onto his ponut as sweet icing drizzles onto a cinnamon roll. The gel dripped down over his ponut, coating it finely with ease. Some managed to slip down onto his perineum and the lowest part of his balls before staining into his panties. He was about to say something when shock took hold as his sister penetrated his anus with her tongue, pushing in and out the lubrication as she gave him analingus. "Twilight!," he managed to get out as she worked away at his pucker, fucking it with her mouth muscle as if nothing mattered.

The mare was too deep into her oral play to listen to her brother, let alone intrigued by the sweet taste of the chocolate lube filling her mouth. It wasn't horrible at all, just as Waddles had told her back in the shop. She focused on making sure the lube was spread inside and out, along with pleasuring her brother's outer nerves with tiny nibbles of his ponut ring with gentle teething. She took hold of his hips to keep her balance as she poked further in with her tongue, punching a small enough hole for her to tickle his tunnel with just the tip.

Letting out moans of pleasure and laying against the ground, Shining let his sister have her way with him. The feeling of her mouth work was incredible, even if it was her first time doing such an act. When her lips left his butt, he felt devoid of that sexual pleasure he was now craving more of. "Please continue Twily, please, I'm begging you." He wiggled his butt side to side.

A crack echoed in the room as Twilight gave her brothers behind a slap that would impress her mother. "Don't worry, I'm gonna continue, but I think you're ready to go fully now. Though I will have to thank Waddles for this lube, it does taste like chocolate." She smiled as she mounted her brother, the dildo pressing just against the outside of his ass. "Now I'm going to go slowly. If it hurts too much just say something because I don't want to hurt you doing this."

Shining winked at his sister before giving her a nod to go ahead. When she pushed he felt the weight of the mare leaning on him force the dildo past his sphincter and enter into his bowels. The little spines on the tip tingled as they brushed against the sensitive walls before giving way to the smoother shaft with slight bumps. As Twilight got deeper, Shining purred more to the blissful sensations the toy was providing. Clenching his teeth, he tried to relax to let the toy sink to the deepest as the small knot it sported was enough to elicit a tiny bit of pain for his first time.

Twilight stopped her pushing when she noticed her brother's face contorting as the knot was sticking at the entrance. "Are you okay Shining? Do you want me to stop?" She rubbed the white cheeks she gripped onto to help relax the stallion in his pain.

"I'm okay, just a small pinching is all. Just a few minutes and I'll be good to keep going is all." His breath was baited as he sat there waiting as his ass adjusted to what was inside and the knot sitting on the outside edge. After a few more minutes he nodded to Twilight to keep going.

With a bit of force, Twilight gave the last little bit its final push, causing the knot to pop into Shining's rear and expand the black ponut to a bigger stretch. Taking a few seconds to steady herself, she readjusted the angle at which she stood to make sure to get the maximum pleasure to Shining's prostate. Once ready she started to pull out and push back in at a steady slow pace. "How does it feel Shining? Do you like it?"

Wiggling underneath his sister, his ass clamping down on the phallus trying to keep it in, Shining moaned with delight. "Sweet Celestia does this feel nice. I didn't think it would be this good. Could you go faster Twily?" His heart rate was through the roof with the adrenaline pumping through his veins in the pure pleasure he was having.

Twilight gripped hard onto Shining's hips and pulled back, taking the whole dildo out of his ass. "I most certainly can," she said as she slammed the entire thing back into his ass at ramming speed. Once her legs clapped against his cheeks she rapidly thrust the toy back and forth in the tight hole. She listened to the moaning her brother made as if he was a real mare enjoying her first time. Twilight smiled as she worked her magic to give a bit more speed to her movement, but her muscles were beginning to burn as she had not used them like this before. Aching built up as she plunged herself in a few more times until she jammed the dildo fully into Shining's ponut before stopping. She leaned over him as her breath tried to return.

"Why did you stop?" Shining asked as he felt the weight of his little sister laying on his rear. He turned his head to see her nearly burnt out from the speedy rutting of his rump. "Ah, I know what happened. Muscles got tense and sore from that. Let's swap places, you wanted to have the real thing instead of your toy." He lifted the mare in his magic out of his ass, his throbbing erection wanting some release from his prostate pounding.

Gently being set on the ground, Twilight laid still, her lungs taking in the cool air as her legs twitched and wiggled to try and stay still. Shining took the time to grab the spreader bar and attach it to his sister's legs, which gave her a bit more balance in standing.

Shining looked over his sister in nearly the same position he was, but she was sporting the jeweled butt-plug in her dark purple pucker. He took hold of the plug and pulled it out with a wet pop. The object was silver with small bumps on the main portion before tapering into the jeweled base. He set it down on the ground and picked up the lube, pouring the liquid onto Twilight's ponut and into the gape that had been given by the butt-plug. When finished coating her in the gel fluid, he used his magic to pull back his panties just a bit more to let more of his dick able to penetrate her ass. As he mounted he said, "Alright Twilight, it's your turn."

She was ready for this, she prepared for this, but she wasn't prepared for the real thing. Her pucker gave way to her brother's dick, it stretched open to fit the girth of his length but it was certainly bigger than her toy and the plug only did so much work warming her anus up. She bite her lip in the slight pain as her brother sank deeper and deeper into her bowels without stopping until he reached his sheath. The tightness and warmth of her butt caused the dick to twitch inside and tickle her inner walls. She wanted to protest but her mind had sunk into a state of euphoria as the pain blended into the pleasure she wanted to have.

"Holy fuck Twily, your ass is super tight and those motions you are making with it are gonna make me explode." Shining panted as his dick was milked by his little sister's butthole. With some effort, he pulled himself back out leaving in just his tip before plunging back in. Her walls rubbed against his flare as he moved in and out of the tight tunnel, moaning in joy with his sister at their forbidden love. His body already was on edge from his anal rutting and now it wanted to burst without giving him much time. "Twily, I can't... hold... on..." he managed to squeak out before he burst.

The sticky cum flew forth from Shining's cock, coating the inside of Twilight's tushy. Even with only a few minutes of anal, Twilight couldn't stand it much either, and her pussy release a spray of cunny honey into her panties, soaking the crotch to the point of leaking through the fabric and down her legs. Both siblings were lost in the moment as they orgasmed together. That point of time seemed to stand still as they emptied themselves of everything.

When Shining Armor finished his orgasm in his sister's rump, he pulled out his now flaccid dick, coated in his cum and the lubrication that was used. He fell back onto the floor, his lungs desperate to fill again from the lack of breath he had from his orgasm. He lay on his side, unmoving as his eyes glazed over with blissful relief. "Twilight, I need a bit of a rest."

The mare still barely standing snickered at him. "That was good and all, even for something so short, but I didn't get to have my oral time." She waddled over to the stallion with the bar limiting her movement. Carefully getting down to his level, she lay on her side, her face at his groin and the dildo at his face. "Though I'll join you on the floor, my legs need to stop being used. So we'll call this an even trade." She opened her mouth and suckled on the flaccid dick, cleaning off the mixture of lube and cum, with a salty chocolate taste as she licked away at the cock.

Shining let out a small moan as he stared at the dildo in front of him. His body was weary and ready for sleep he opened his mouth and returned the favor on the faux phallus. The taste of chocolate tingling on his lips and a bit of sweat from his ass gave a salty taste. He bobbed a few times to match with Twilight's movements before letting go with a lip-smacking pop.

"Love you B.B.F.F.F.," Twilight said as her eyelids started to descend. Yawning wide, she got out a few more words. "We can continue after a nap."

The stallion nuzzled the legs of his sister before closing his eyes as well. He whispered out, "Of course Twily, of course."

With that the pair drifted into a peaceful slumber, to recover from the energy spent already from the excitement and testing of new experiences. A long day indeed for such lovers, to have experienced more in such a short time than most would in a few years. Both had felt as if they knew each other even more on a deeper level. As the day drifted on, the two slept quietly, the only sound being the ticking of the clock counting down the seconds of the day.