“LIAAAAAM!”

The shrill voice echoed throughout the house, followed all too quickly by the slamming sound of wood on wood. The teen rolled his eyes, already mentally ready for the source of the voice to come pouncing up to him. The rapid pats of paws hopping up the staircase confirmed his suspicion as easily as writing on the wall.

He spun around in his chair, just in time for his door to be barged in. Rushing through the door was a teen, almost a mirror image of himself, though he could more than easily spot the differences.

She had spots where his fur was matte, her tail was many inches longer than his own, and of course she was also a girl. One he was unfortunate enough to be related to. “What is it, June?”

“Oh. My. God. You would never guess.” The small teen held forward a small fabric bag, “Go on! Guess!”

Liam let out a huff of air, “You went shopping?”

“You must be psychic.” She said, forcing an eye roll from the boy, “But you’re right! I got something so amazing.”

The lion teen was barely able to resist the urge to sigh, “I thought I told you to keep your clothes to yourself?” 

Though to his surprise, his sister shook her head. “It’s not clothes this time, don’t worry I remembered.” She reached into the bag, pulling out what looked like a leather bound tome. 

“A book?” His voice was dripping with disbelief, “Never took you for the studious type.”

She held the book out for him to read, [101 Magical Spells; All you need to know to become a mage]. “It’s a magic book!” She turned the book back around and read the title for herself with a wide grin, “I saw it in the back of Mr. Curious shop and I just had to get it.”

“You went into that creep’s store?!” Liam asked, “Don’t you remember what happened last time?”

His sister nodded, “Well yeah, but he seemed nice this time. Said he was super sorry about it.”

Looking at the book in a new light, the boy slowly inched away from it, “Right…” He started, “I’m not sure I want anything to do with that now.”

“Oh come on, don’t be like that!” She objected almost instantly to that idea, “Come on, just one? I saw one that I really wanted to try.”

Liam sighed, there was only one way he was going to be getting out of this mess. “So what do you want me to do?”

—--
[hr]
—--

“For the record, I still think this is a bad idea.” 

His protest fell on deaf ears. As he lay on his back on his sister’s bed. She’d insisted on using her own, ‘just in case’, whatever that meant. 

So here the teen laid, a small towel resting over his chest with the leather tome sat on top. 

To his side was his sister, who looked almost giddy with excitement. She flicked through the book on his chest one last time before slamming it shut abruptly. 

“Okay!” She declared, “Are you ready?”

“What if I say no?” Liam asked, “Do I get out of doing this?”

The reply he got was in the form of a rough hair rub by his sister. “Come on, it’ll be fine. You’ll love it I bet.”

“And what is this ‘it’, you still haven’t really explained an-.”

“Alright sit still now!”, Interrupted again, “I’ve heard that bad boys could get really badly hurt if they don’t follow a mage’s orders.”

Liam gave up, letting out a sigh and falling back into the soft fabric. “Alright, go on.”

That seemed to be all the cue that his sister needed, placing her hand on top of the book weighing him down. Soon, she began to chant words that he was almost certain that she just made up. 

“Domix rifaiie, dominix rantaria. Aluto lexicane restote”

As the words kept flowing from his sister’s mouth, a weird sensation began growing throughout his body. He couldn’t place what it was, it felt like a cramp only more pleasant?

The feeling started near the bottom of his paws, but with each breath he gave the feeling crept further up his body. Passing his ankle, passing his knees, passing over his waist and before he knew it crossing over the rest of his body. 

Wrapped entirely in this oddly soothing yet all smothering sensation, Liam felt his mind trip. A small blip that he knew for some reason was important. But how?

He was so deep in thought that he missed his sister going silent. Not noticing the absence of sound until she spoke again, “Hey Liam, wake up.”

With a jolt his eyes sprung back open, not even fully aware of shutting them. His eyes locked onto his sister, who was staring back with an odd intensity. The siblings shared this gaze for what felt like an eternity, only being broken as an odd heat started to bloom in his body.

“So, uh.” He averted his gaze, biting his lip as he looked at anything except her “Did it work?”

“I think so.” She muttered, “Sit up for me”

Liam pushed up against the soft mattress, pulling himself up to a more sitting position. He was dimly aware of the book from earlier being missing, but that also felt far from important.

He looked down at his body, pretty much nothing of note had changed. Still wearing the same clothes, still the same colour fur. Liam rubbed a finger against his eyes, looking at it after just in case he’d had a joke played against him. Nothing.

“June, what was the spell suppo-”

He didn’t get to finish before a single sentence broke him into silence, “Forget what happened.”

The world went dark.

—-
[hr]
—-

The morning sunlight shot through a gap in the blinds, landing quite squarely on the muzzle of a teen teen. Grumbling softly in his sleep, he turned over to gain some momentary respite and salvage a little more rest. 

It was, however, in vain. As no matter how he twisted and turned, the morning had come, and he wasn’t getting back to sleep.

The lion teen stretched out his limbs, his golden fur glimmering in the soft light. Opening his eyes for the first real time, he pulled the covers off of himself. 

Standing up from his bed, he began by picking up his clothes strewn around from the night before. It always seemed like no matter how cleanly he put them away, they always were dishevelled come morning.

No matter, he had to clean them. Finding the cleanest of the stuff on the floor to put on, he dumped the rest into the basket in the corner of the room. In the end, he settled on a simple set of shorts and t-shirt. 

Casually, he opened the door and began to make his way down the hallway towards the kitchen, mind already drifting to what he’d have for breakfast. 

At least, until something halted him in his tracks. His sister’s door was open.

This was entirely unexpected, given that the girl had kept it under lock and key for almost as long as he could remember. Refusing to let anyone, even their parents, take even a peek inside. 

He glanced down the hallway, looking both ways to make sure no one was coming, before pressing his ear up to the door. 

Silence.

Liam pushed the door slightly further, grimacing as the hinge squeaked far too loud, but as soon as he could fit his muzzle through the gap he could see that the room was barren. 

He bit his lip.

It’s not like the teen was a total goodie two-shoes, but invading his sister’s privacy felt like an honestly bad thing to do. But at the same time, he knew it was very unlikely he’d ever get another chance.

Liam pushed the door further open, slipping inside as soon as he physically could. 

Shutting the door behind him, the first thing that hit him was the sheer scent. Feminine, overpowering, and familial. He didn’t want to think about the effects it was having on him, so he moved deeper into the room. 

At the back right sat a simple PC set up, probably used to message her friends if he had to guess. He flicked the mouse, whirring the PC to life. By some miracle, or maybe his sister’s belief that nobody would be in here except her, the computer didn’t prompt for a password and instead booted directly to the homescreen.

Liam glanced over the icons, spotting the familiar web browsers, chatting programs, games that he more than expected. But what he didn’t expect, sat right front and center.

A folder, with his name on it.

He bit his lip, eying the door careful as if someone could burst through at any second, and clicked on the folder.

His jaw dropped. 

The first thing he saw in the folder, right at the very top, was a picture of his cock. Stood fully erect, presented in full for the camera. He remembered taking this exact picture, he sent it to his girlfriend just last week! How did his sister have it? Why did his sister have it?!

Below it were more folders, each with their own title. “Liam Sports”, “Liam Shower”, “Liam Videos”

He clicked on the first folder, and was greeted by hundreds of pictures of himself. Recognising them instantly as the time he played football at his parent’s request. A lot of them were action shots of himself scoring some kind of goal, or passing the ball dramatically. But that wasn’t what caught his attention, no what caught his attention was the fact that each and every one of the pictures saved had a clear and almost focused view of his bulge. 

Liam backed out of this folder, getting a strange feeling about the purpose of the rest of the folders. He clicked on the next, and knew that these blew the last ones out of the water.

Stealthily taken pictures of himself, while in their shower. The door frame was still easily visible in some of them, clearly taken by someone who didn’t have permission to be in there. Did June really…

He scrolled further, and as he did the pictures got more and more daring. Less of the door could be seen, the pictures were taken closer. The last few in the file were even taken while he was drying off, the towel the only thing stopping him from catching his peeping-tom. 

Did his sister really think about him in that way, Liam thought. She simply had to if she was keeping these kinds of pictures. Did that mean she wanted to…

He navigated to the last folder, the one claiming to have videos of him.

There was just a single file inside, a video as promised. This one had a date on it too, two weeks ago.

He needed to watch it.

With a click the video flared to life, and instantly loud moaning blasted out of the speakers. He cursed and tried desperately to lower it to a more quiet level. His hands shook too much to do it though, as he recognised that voice almost as soon as he heard it. June.

He looked back up at the video, playing unabated. The camera focus was blurred, and was shaking rapidly, but he could see one thing clearly. Two sets of light golden fur, and a feline cock pounding a feline cunt.

Liam’s breath stopped in his throat as he heard a voice that sounded just like his sister moan whoreishly, “Fuck me… Harder!”

He’d never heard her voice in this light before, and the effects it had on his body were immediate. His cock began straining against his shorts, begging to be used like the cock in the video. 

The lion rubbed his crotch through the fabric, hoping to ease the tension a bit, he wondered who the guy was that his sister had let into her bed. She didn’t have a boyfriend, maybe a lion hookup? 

This thought was shattered as the camera was clearly knocked out of his sister’s hand, falling to the floor face up. He got a good look at the guy fucking his sister. It was him.

“Huh?!” He almost shouted, mind latching onto this complete oddity. This can’t be real, right? Surely he’d remember having sex with his sister of all people. Two weeks ago…

His mind was ablaze with thought when a voice broke him back to reality, “So, you figured it out?”

Liam’s neck snapped up to the doorway, in which stood his sister. She just had a single towel wrapped around her body, the only article of clothing as she slowly closed the door behind her. Locking the two together.

“You’ve figured out what’s going to happen, right?” She asked again, her voice far more commanding than he was ever used to.

“F-figured it out?”

She just sighed, “One day,” June muttered under her breath, “Fine, I’m erasing your memory. You get it now?”

That he logically understood, how else could he forget, but it didn’t make this any more understandable. “But how? That’s like… magic or something.”

“Magic huh…” This seemed to amuse her for some reason, “Well the how isn’t super important, the real question is what are you going to do?”

“What do you mean, June?”

In sole answer to his question, she simply dropped her towel. Exposing her entire body. Before he could regain enough sense to avert his eyes, he saw everything her body had to offer. The slim form, the well shaped thighs, her almost perfectly sized chest. 

He had to look away, “June! Please you’re my sister.”

“Hmm, is that a no?” She sounded disappointed, but to his mind it almost seemed dismissive, “Well, I guess I’ll try again tomorrow.”

“Try again tomorrow?”

“Forget this morning, Liam.”

—
[hr]
—

Liam poured himself a bowl of cereal, the milk already in the bowl splashing as he did.

In the corner of his eyes, he saw his sister step down the stairs. Turning with a smile to greet her, he spoke, “Hey June, sleep well?” 

She smiled back, winking at him in a way that sent his heart aflutter, “Better than I thought.” She walked over to his side, stealing the box of cereal out of his hands, “Say, are you free tonight?”

“Well yeah…” He wasn’t exactly the social butterfly she was, “Why, did you have something planned?”

“Nothing special, just some…” She leaned in close to his ear, “Sibling bonding”

He looked at her with a confused expression, but instead of elaborating she just giggled. “Alright! See you then!”

His sister was an odd one, but he wouldn’t trade her for the world.