Brother and Sister Age Play By: Oliver-England“Ooh, shining!” Twilight moaned, feeling her brother’s thing pulse shallowly into she hunkered her legs around her brother’s sides. For years now, Twilight and Shining had a shaky behind the doors romantic life. Pecks on the cheek, uncomfortably personal embraces, and romantic gazes being just a few of the small jests that raised an eyebrow from both Cadence and the Crystal Empire’s staff. Ironically enough however, the actual choice to have an affair didn’t come up until Flurryheart’s graduation party where in Twilight accidentally ran into her brother while he was leaving the bathroom. “Twily, I’m sorry I didn’t see you there.” Was the man managed to let escape his lips before he stared down at his sister- more precisely, at his sister’s beautifully crystal like eyes. Twilight’s face lit up with a blush, then leapt at her brother grabbing his cheeks and landing a big kiss right on his lips. Shining, in the heat of the moment leaned into the kiss, closed his eyes and ran his hands gently down his sister’s silk dress. His hands graced her poised waisted, over the dress’s hemline, until his fingers eventually graced right over her backside. He pressed his hands into his sister’s perky backside, only to be greeted with bizarre sensation of a crinkly paper-backed diaper. “Aaaa.” Twilight swallowed, opening her mouth just slightly as she checked out Shining’s still well groomed dress suite then up at the same blue-sapphire eyes she’d known her whole life. “Ooh Shining, spank me- just once.” “Twilight.” He said, backing up a little in the bathroom. He looked down at his sister- who upon closer inspection was definitely walking with a bit an awkward sway- probably due to the diaper. Smiling he shook his head, “I can’t do that Twilight- A-are you wearing a diaper?” The girl’s face shined bright with a deep red blush as she lifted her skirt- revealing her babyish underwear- decked in the kind of infantile prints that are unseen from commercial adult diaper brands. “I’ve been a bad girl.” Twilight muttered, butting her lip slightly as she looked up and imagined her brother’s sculpted body underneath all of his finely created cotton clothing. “Listen Twily.” Shining paused, resting her hand on her shoulder. Smiling kindly, he nodded. “You know I love you, but I think we ought to do this later. I’ve got friends outside that are expecting me- but I promise we’ll do something soon alright?” Walking aside his sister, he awkwardly strutted out of the bathroom with his hands in his pockets, scooping for anyone who might have heard the conversation. For the next month following the event, Shining used every one of his resources to learn the craft of his sister’s fetish. He- was evidently tired of his wife’s shallow kink-less sex and as a result, he spent the majority of his time indoctrinating his wife into the world of being babied. Until, the one faithful night when he came stumbling into Cadance’s nursery drunk with his sister by his side. The moment, built upon a life time of sexual frustration and surpassed urges, broke down to a few awkward moments of Shining and Twilight, mostly naked on the ground, thrusting into each other through the bulk confines of his sister’s diaper. Perhaps as an act of poetic justice, The same kind unruly sex Twilight could hear from the other room as a child was now being replicated, in front of her former babysitter, with her boyfriend. “Oh Shining!” Twilight moaned, feeling as her brother lifted her legs in the air. The hole of her diaper- which she’d hour ago, dug into her diaper due to anticipation- had since been filled with the hot flesh of her brother’s long erection. Even through the thick padding around her waist prevented her from getting too much of her brother inside of her, the sounds of Cadance’s cries and the sensation of her brother’s muscly build shifting her waist back and forth like a sex doll drove her wild. Her brother and all the prestige and intelligence he’d built over the years, was terminated by the shameful act of incest with sister, while cheating on his wife. She was such a naughty baby. For several minutes the rocking sensation, the fullness her brother’s girth provided, and warm friction of the chamber’s carpet formed on her back lit her up on the inside. Until, with one last thankful thrust, she was pushed over the edge cumming quietly in her diaper like the messy girl only her brother could make her be. It goes without saying, that by the prince’s authority, his wife’s spot in the chamber would be replaced with his much more desirable lustful sister and his wife would occupy a nice-reclusive spot on in offshore island in exile; the civil thing to do really.—A followup to this: Cadence’s Diaper PunishmentAs always, I really hope you guys enjoyed the story. It’s worth noting that I’m going to try and integrate some more pony-drawings into my art rotation using my new art style, so if you have a preference for something to happen, please feel free to comment down below!Link to my Tumblr: oliver-england.tumblr.com/Have a good one! ~England