Trained

The experience in the gloryhole felt surreal, now that you were out. A mix of guilt, bemusement and lingering pleasure were constantly filling your mind as it tried to come to terms with the virile loads resting within your body.

Yuri had given you her number, promising to keep in contact with to 'enjoy our new partnership together.'

Yeah, Sarah was going to **** you.

After going home, taking a shower and getting Sarah her favorite dessert for dinner, you finally fall on your bed.

Night arrives, and everyone else is soon asleep. Before you could join them, though, your phone rings.

Your heart skips a beat when you realize it's a message from Yuri.

You need to stop this, for your siste-did she send you a dick pic?

'Wish you were here; this little friend really missed you. Hope this helps you have nice dreams ;)'

And then came a barrage of photos. As much as you wanted to ignore them, you find yourself hypnotized by them.

So many pictures of that magnificent dick, from so many angles...

You still remember her taste, her warmth, her sheer virility...

Before you knew it, your hand's moving up and down every inch of your member, your gaze transfixed in all her pictures.

In record time, you want to cum. And, to your eternal shame, you want to make her cum again, too.

Then another message arrives.

'Cum'

And you do, messily, trying to keep your moans under control.

...By the time you are done, you need another bath.

After a not so restful night, you had rushed to school so as to not face your sister. But youe walk had taken a detour to the park when you had received a message.

It was only curiosity that drove you there. Or so you tried to tell yourself.

Pressed against the tree, you were trying your best to keep your moans down as Yuri fucked your butt, thrusting every inch of her cock in and out with all her strength and skill so as to make you fail and let the world hear you submit.

"So naughty, little Dougie! Skipping school to do this in a park? Scandalous!" She giggled cruelly as her hands sneaked under your shirt and pinched your nipples.

Pain and pleasure mixed over and over as she conquered your ass while playing with your chest, teasing and pulling in equal measure.

"Y-Yuri-!"

"Yes, b-beg Dougie! Beg me to stop! Beg me to be ****! I'll just keep gooing!"

...That day, you had to spend all your classes clenching your butt so none of her cum would stain your pants. Your classmates looked at you strangely, though the girls seemed a bit red and restless if they were near you for too long.

The day after that, the bully was waiting for you near your home.

Giggling, she simply hid you in your own backyard until your house was empty. You would have protested if her hands hadn't been busy; one giving you a delicate and expert handjob while the other was fingering your ass, giving special care to your prostate.

By the time your family was gone, your balls were empty and you were exhausted putty in her grasp. Something she was more than going to take advantage of.

And her idea made you balk in shock. Having sex in Sarah's bed?!

A part of you knew this was wrong, that you couldn't go that far. And yet...

Not even ten minutes later, Yuri laughed as you rode her cock, impaling yourself in her member.

You just couldn't say no. This cruel, pretty girl and her incredible dick...

Up and down, up and down, this time you were the one moving. She just watched you with a smug expression, enjoying your tight butt as it impacted her hips.

"Yes! Yes! Take more, take it all!" She demanded, swimming in the ecstasy of sex and her victory over the clueless Sarah.

That fact hurt. And yet you could not stop your body from moving, your ass from taking and embracing her member, your whorish moans from escaping your mouth.

Lust was defeating love. And as much as you wanted to stop, you didn't want to stop.

That contradiction continued as you fucked for hours in Sarah's bed.

First with you being taken from behind in doggystyle, moaning as Yuri pistoned into your soft butt. Her beatiful voice kept teasing you with how great your ass felt, and how much of a bad brother you were.

Then you were below her, face up and with your legs wrapped against her hips, your lips savagely pressing against each other. Gone was the demure girl, only a wild, rutting beast using a toy to sate her desires.

After that intense fucking, you were now laying on your side, Yuri pressing against your back as she took your backdoor again while one of her hands **** your member into a **** hardness once again. You were out of cum, and at this point it was more painful that pleasurable.

But you were too overwhelmed by her dick ramming your oversensitive butt to voice any complain.

At last, the bully was sitting on the side of the bed while you were kneeling on the ground, exhaustedly but dutifully blowing her cock.

Though she looked almost as exhausted as you, Yuri was also basking in the pleasure of both sex and this devious victory over your unaware sister.

It was hard to believe someone so beautiful could be so cruel. The part of your brain not slaving over her member pointed out that fiction was wrong: beauty did not equal goodness.

"I can't wait to see her react to the musk we're leaving behind, my pet..." She muses with a giggle before moaning as she reaches her climax one more time.

After a quick shower, a content Yuri leaves your house with a noticeable skip in her steps. Meanwhile, you are now rushing to clean as much as you can, hoping Sarah will believe the lingering musk of sex is the result of her own masturbation sessions.

Though you appear calm and collected, that evening you are wracked with nervousness on the inside. But Sarah never mentions anything weird in her room.

The next days are not that risky, as Yuri simply summons you to the gloryhole to sate her lust.

You do notice that Sarah seems hornier than usual. She always has a bulge in her pants and skirts, and it looks bigger-not that you ever payed attention to that detail much, mind you.

She also takes more bathroom breaks at home, to Crystal's annoyance. But her lust never seems to fully subside, leaving her restless.

Is that normal...?