What She Loves The Most

What She Loves The Most

by Dashiel

The treehouse was empty. Twilight had made sure, twice. Spike was out on an errand which would take several days and everypony else thought she was heading to Canterlot. The doors were locked, the windows shuttered and the lights were out. It was time.

-oOo-

It had been one of those weeks; frustration after frustration, no task successful, everypony short with each other... Twilight could feel the tension trapped in every muscle. She had found herself grinding her teeth at breakfast, merely at the thought of another day with her friends. It was, it had to be said, time for a holiday.

The scroll, then, had come at just the right time. In a small ball of mage-light, she read it again.

Dearest Dusk,

I miss you, big brother, and I need to meet with you again. We have so much to talk about, I'm sure plenty has come up that you need to share.

Love, Glimmer.

Twilight trembled as she placed the scroll face down and hastily scribbled on the back a reply. Code words, all of it, and as thin as ever there were. She knew what her brother wanted to share, and she was only too happy to provide it.

Dear Glimmer Shield,

I miss you too. I have so many stories to share with you. Through thick and thin, we push forwards. I'll bring a change of clothes and meet you at the cabin.

Love, Dusk Shine.

Her brother wanted to see her, eh? Well, Twilight wanted to see her brother too, very much. With one minor adjustment, that her brother loved more than he dared say. She sent the scroll on its way with a flicker of magic from her horn, and then set about preparing for the real spell.

-oOo-

Long ago, she had discovered just how much she loved her brother. He had been the most important thing in her life for many years. Many long, long years... and as he had grown up, so had she. It had started innocently enough: she'd asked him why girls peed from their behinds whilst boys peed from below, and he'd shown her the difference between colts and fillies. She'd devoured all the books, thereafter, on sex and reproduction in an effort to understand. Finally, she'd decided she needed a live subject.

She drooled a little even now, thinking about it, her tail twitching involuntarily as her velvety-smooth cunt dripped with mare-juice in anticipation. Her brother had been asleep, standing up in his dormitory. Even then, he'd been practicing for the guards. She'd snuck below him to get a better look, scooching around. Her brother's cock had been hidden deep within his sheath, but that hadn't stopped her. Nuzzling carefully, she brought her nostrils close to that musky crevice. Taking a deep breath as she examined him, the scent of male pony had aroused her deeply. She hadn't known what it was, back then. She'd been growing, of course, and was close to adulthood. A few seasons shy of having her own foals, nonetheless her bodily desires had been making themselves known in more or less obvious ways.

The attraction she felt for a stallion, strong and proud, was one of them. Her tongue, sweet and innocent, flicked out as she tasted her brother. It was bitter, powerful, and she wanted more. She couldn't help herself, she licked and fondled her brother's bulging sheath and balls with her tongue and lips until - wonder of wonders - his cock started to drop like when he wanted to pee. It grew, longer and longer, as the astonished filly looked on. Hesitant, but not willing to abandon her prize just yet, young filly Twilight had kept at it. Drawn to that stiff rod like a moth to a flame, she found herself taking the head in her muzzle, bobbing back and forth.

Soft whinnies had brought her back from whatever heights of passion she had been scaling. "That's... that's wonderful, Twily... but..."

She'd frozen, stock still, with the stiff and growing cock of her brother stuffed halfway up her muzzle, unsure of what to do.

"Shhh," her brother had said softly, "it's okay Twi, just turn around, I'll make you feel real good too, okay?"

Twilight had panicked, but had done as her bigger brother asked. After all, he was her brother. He'd never do anything bad, would he? And it turned out, he wouldn't. He'd carefully stepped over her, and then dove his great blunt muzzle into her behind. A hot, long tongue had wound itself sensuously deep into parts of her body she didn't know she'd had. Wracked with burning waves of ecstasy as they flooded her young body, she'd experienced her first orgasm at the lips and tongue of her brother. He'd smacked his lips noisily, dripping with her mare-cream, and then whispered in her ears, "you liked that, didn't you, Twily?"

"Uh huh..."

"So does Cadence. You wanna know what else Cadence likes?"

"Uh huh!" Young Twilight had shivered, still up on some cloud so high, she doubted even the most talented pegasus could reach it.

Her brother had jumped upon her back, his teeth fastening to her mane. "Hold still now, sis, this might hurt a little the first time... but you're nice and wet, even if you're a tight little filly, so we'll go slow, okay?"

"...Okay," she had whispered, as she felt something else poking under her tail. It felt a little like a hoof, though it was thinner, and at once both softer and harder. Her brother kicked a little, holding her tightly with his forehooves as he walked himself forwards. She gasped, working out what it was in an instant. Her brother's cock, his gorgeous, tasty, huge cock, was sliding deep into her filly cunny. For a brief moment it met resistance, a bare few inches past her taut lips, but then he pushed harder and took her virginity. She cried out in pain, but he gripped her even harder with his teeth in her mane and kept on pushing. Slowly, the pain turned to pleasure. She was sore, it hurt, but... it also felt right, and good. He was as attentive at rutting as he had been at cunnilingus. He moved gently, but firmly and with great purpose. That huge stiff pony-cock of his slid, eventually, all the way in, and his heavy velveteen balls slapped at her backside. Unbidden, another orgasm had wracked her body and she came in a forceful gush that propelled his own hot seed out to spatter on the stone floor of his bedroom. Spent, he'd dismounted, and she'd trotted off to bathe his scent off her flanks and wash the remainder of his seed from her inner-most sanctum, taking a long time and enjoying the glow of having a real stallion's musk upon her.

If the princess had seen a change in the filly who was rapidly becoming a mare, she'd never said anything, even though Twilight had taken an interest in some rather esoteric and rare spells. It had all been with a purpose though; an experiment which she would conduct with her brother. She had felt an incredible orgasm as a filly, but how did it feel for a stallion? When she'd first presented herself as her male alter-ego - which she'd named Dusk Shine - Shining Armor hadn't known what to say... but then curiosity had gotten the better of him. He'd heard that mares could have multiple orgasms, whereas stallions could generally only have one at a time. He'd learned the same spell, although it had taken him much longer than for his sister, and eventually had stood before his little brother Dusk as sister Glimmer Shield.

They'd tried it as stallions, they'd tried it as mares, and then they tried it switched... and just to make sure the results were definite, they'd tried it all again. And again. And again. Eventually, they'd given up all pretense of a simple experiment and just learned how to please each other, in whichever sex they desired.

And now, with all the tension Twilight had been through the previous week, the fact that her brother wanted to be her sister meant that she'd be able to work off some of that frustration by boning her bigger brother in his female alter-ego. She had to admit, there was a certain refreshing glow from being a stallion, thrusting into a willing and waiting subservient mare that quite washed away all the trials that life could throw at her.