Wank session

You quickly slip into your room hoping to remain undetected, you doubt Keira would be able to do much about your plans, but if things go too far off course it will spoil some of the fun.

Taking the image of James and setting it down on the bed, you begin stripping yourself.

He really is kinda cute. Your sister's found quite the catch. Boyish good looks, twinkly blue eyes, and an ass that puts the girls volleyball team to shame.

As you peel your shorts down, an old realization dawns on you. What a waste... what an absolutely pathetic waste he was.

Your flaccid cock, still some 9 inches and the thickness of a plum, flops unceremoniously out of your pants and smacks the image of James with a heavy thud. What a beauty, you never get tired of seeing it despite it being yours. Its a strange thing being a girl like you, attracted to both sides of the coin so strongly, but with this serving as example all your life you could never really appreciate men's cocks the same way.

When you first started developing, your urges were most obviously aimed at women. Sneaking suspicions of your endowment seen through your clothes turned into 'first hand knowledge' quickly in the locker rooms. The looks on their faces, the way they drooled, and cried, and screamed. It was as if every single second spent with you and your dick was the happiest moment of their whole lives. Who knows, it probably was.

Naturally, as you were also attracted to boys, you sought out the same experience yourself. With your beauty blooming further by the day it was common for boys to ask you out, and when the next one did you decided to take it to the next level.

Accelerating the shy boy's advances may have been a bit rash in hindsight, but despite his nervousness the teen quickly agreed the first time you two decided to slip away.

When he finally pulled his pants down, you saw it. For the first time another cock out in the open. Although you would barely find it appropriate to call it that. The flaccid, shriveled, almost infantile little nub quivered with the young boy's nervousness, his own weak spirit adding further to the shameful display. You knew immediately that this wasn't going to take you to the rapturous heights all those locker room romps had taken your partners. No, it was insulting to even assume for a second that his piddly little member could be used for the sex act, let alone on you.

When you revealed your poorly kept secret to him after a short bout of giggling, you'll never forget the look in his eyes. Shame from the mockery, turned to surprise from the reveal, turned to awe from the size of the thing.
This all melting into fear from what he knew would happen next.

But he stayed, turned around like you commanded, and met with the exact blend of pain and ecstasy he feared.
He wasn't just afraid of getting fucked. Of your monstrous length stretching and filling and pummeling his insides in a way nothing else ever could. He was afraid of the second thing he thought after seeing your cock. Afraid of just a how beautiful, and powerful, and perfect your organ really was. This, and of how much he'd love being ruined by it.

And love it he did. His little boyclit burst the second you got the head of your brutal member into his tight virgin ass, and after that he came five times during your pounding, all the while leaking in between. His moans getting higher and higher the whole time, finally screaming like a girl when you finished inside him.

Ahh, fond memories. That sound, the look on his face, his nervousness. That's what made boys worth it.

For girls, having a go at them was like giving a foodie the best meal of their life. Big smiles graced the faces of the newly spoiled. The girls became women. More of what they used to be but taken to higher form of the same experience, however much higher that was.

But for men, it was more liking giving a monk heroin. Your cock didn't merely take them to higher heights, it showed them different ones. These boys didn't become more manly from the experience, far from it. Men turned into cumdrunk sissies after a round with you. This wasn't mere elation, it was transformation. This coupled with all the dramatic waves of emotion and sensation that entailed. Your cock taught them something about themselves, something perhaps impossible if it weren't for you, but something that your presence demanded.

They weren't fit to breed, they had no business even trying. All they were good for was taking dick, and the only dick worth taking was yours. Watching every bit of pride and masculinity melt around your savage thrusting cock was the sweetest syrup the world had ever made.

That's what began to piss you off so much while looking at James's image. He didn't know his place, and your sister didn't know either.

James was born to be a sheathe for your dick. And your sister needed to be shown just how true that was.