The unicorn had been tidying up the castle's library after having finished closing it up from the public for the night, a self-appointed task he took very seriously. His mother, Princess Twilight Sparkle, had been very organized with her libraries as well, so perhaps he got that from her. When he got to one of the tables near the entrance, he discovered, much to his chagrin, a book laying atop it with a bright red sticker slapped to its spine. The sticker signified that the book was meant for more 'mature' readers, and some inconsiderate pony had been, for the last week or so, taking some from their designated area and leaving them out in the open where anypony of any age could happen upon them.
Luckily, no foals as of yet had paid the seemingly uninteresting books any mind, but Alter still thought it was better to be safe than sorry. He had arranged signs throughout the library, telling ponies that books of such material were to be returned to their proper place when done with, yet they went unheeded, ignored. This vexed the young unicorn stallion, as even now, Alter continued to find books from the 'Adult' section far from their proper area.
As Alter continued to glower at the book, staring it down as if would break down at any second and give him the name of the pony responsible for leaving it there, his young wyvern assistant, Serene, approached. She was pulling along a small red wagon filled with books, helping Alter clean the place like the good little assistant she was. Stopping before Alter, she noticed him cease all movement at the sight of one mislaid book.
"Hmm?" she sounded curiously, slowly looking back and forth between Alter and the book lying on the table.
Unsure as to why he didn't just pick it up by then and continue working, Serene reached for it, only for her clawed-hand to stop when Alter spoke up.
"Um. Thanks, Serene, but no. I got this one," he said, picking the book up with his magic. She was already such a hardworking little wyvern, and it’d be a shame for her to make another trip to the other end of the extensive library. "You just finish cleaning up here in the front. I'll take this book and a few others to their rightful places near the back. After that, we can finally get ready to turn in for the night. Sound good?"
Serene didn't respond. Instead, she just nodded slightly at him with the same stoic expression she always wore.
"Alright," Alter finished with a nod. "See you in a few minutes, then."
After sifting through the wagon, Alter parted from the wyvern, walking down one of the library's many bookshelf-aisles with several books floating behind him in his magical grasp. As he slid books into their correct shelves along the way, Alter was soon left with one book to return; the same one with the same red sticker that he had been so fixated with earlier. Fortunately for Alter, he didn't have to walk much farther, as he was already standing in front of the adult section.
The 'Adult' section was at the very back of the library, a separate room closed off with a simple black curtain in lieu of a door to make it look as uninteresting as possible to young foals. Above its doorway was a sign that read plain and clearly:
Adults Only 18+ No Foals Allowed!
With the book in tow, Alter parted the curtains with his magic and walked through them. Closing the curtains behind him, Alter moved through the rather large room. As he walked deeper into the adult section, Alter, along the way, rearranged any and all disorganized books he happened to find back onto their proper shelves. He made a mental note to go through the room's other aisles before returning to Serene.
Following the rest of the library's decor, the adult section didn't display pinup mares on its walls to reflect its more lurid themes. Other than its curtain and sign, the room really didn't look that much different from the others. It had its own furniture as well, ranging from chairs, tables, sofas, and bookshelves doubling as aisles. Though, because they only had so many adult novels in stock, those aisles were few and had less width than the others.
Actually, no. Now that Alter had made it to the very end of the room, he recalled that there was one other thing that set the library section apart from others. Something that was almost always there whenever he visited it.
"Hmm, still haven't found your mysterious steamy-book thief yet?"
It had its own live-in tenant.
Sighing quietly out his nose, Alter looked to his side and spotted Sparity, daughter of Spike and Rarity, as well as his sort-of cousin. With how often he found her in that particular section of the library, especially when late at night, she might as well be living there. Actually, for all he knew, she could be!
The white-furred, violet-maned hybrid pony was lying snugly on the floor in her dragon form. With her being a unique mix of two different species, Sparity, when in possession of a dragon stone, had the ability to switch between two forms, both that came with different appearances and advantages for the mare.
Her first, mostly used form was that of a green-maned unicorn, a form that made her almost indistinguishable from any other pony and one that granted her the ability to use magic. Her second—and current—form lacked a magical horn, and was the more dragon-like of the two. Besides changing her mane color from green to violet, her dragon form endowed her with a pair of large feathery wings to fly with, sharp claws at the end of every leg, a long serpentine tail with a single row of violet spines, and, like her father before her, the ability to breathe fire.
She always presented the best of both races, and her parents couldn't be more proud of her for that.
Still laying on the floor, Sparity's back was turned to the stallion. Her head was resting atop one of her clawed forelegs as she read from a book that was obviously taken from one of the surrounding shelves.
After ruffling her feathers with a quick stretch of her wings, and better adjusting her red, round-framed glasses to her face, Sparity turned her book's page with a claw before returning to the subject of the book suspect.
"Well, to be more exact,” she mused, “whoever it is isn't exactly taking the books, per se-more like leaving them in a part of the library where they shouldn't be left… So, heh, mysterious book misplace-er, then?"
Alter scowled, failing to find humor in the situation. He was working hard to make the library a welcome place for all, and somepony was clearly undermining that! If this mysterious pony were to continue their poor library-etiquette, then Alter would make it his personal vendetta to find him or her!
Knowing how riled up Alter was getting, Sparity's mouth curled into a toothy grin. She didn't have to look away from her book to know that he was glaring at her with a deadpan expression. She found it amusing just how serious he took that little 'job' of his. It was a thankless job, and it wasn't like anypony was paying him. It was just one of those things he dedicated himself to for no real rhyme or reason.
Alter continued to stare at Sparity, shooting daggers at the back of her head. He did so for a few seconds, hoping she would receive his message by sensing his eyes fixed on her. However, once her her tail began to instinctively sway to the side, the stallion's posture stiffened as he immediately redirected his gaze forward, away from Sparity.
"Y-You know, Sparity," he began, his eyes centered on the bookshelf before him as he slid the book he had found back into its place. "If you're going to be reading that kind of book, then wouldn't it be more suitable for you to do so at a more appropriate place? You know, like your room?" Her eyes not leaving her book's page, Sparity's mouth formed a half-smile as she shrugged dismissively.
Hello, dear Here is my fifth Picture Series, dear. This picture series is a naughty story of my OCs from Chaos Future series. Hope you don't mind some none-canon. "
Also, this story actually a continue of this fiction. But reading it isn't necessary (But it's fun! You should give it a try!) Mare Can Be Playful
Beware, This is a mature story. Content with romance and erotic. You have been warn…
PS. Continue of this pictures series can be found soon in Patreon "www.patreon.com/vavacung?ty=h":www.patreon.com/vavacung?ty=h for $20+ Patron or waiting until "[Comic] Crossover Story" end. It will come out together later for free when it complete. [Around 3-4 month] As the choice of "Pay what you want" You can buy it as 0 USD too.