Previous chapters:
One | Two | Three | Four | Five | Six | Seven | Eight | Nine | Ten | Eleven | Twelve | Thirteen

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Madelyn lied in her slut diary. She said nothing about pissing in Avery’s mouth, or letting Avery lick her to orgasm. She already felt scared in doing so, worried that Uncle Sean would somehow see her deception.

To cover her tracks, she said that she had gotten a little aroused last night dancing for Uncle Sean and Logan. She said she had liked bouncing her tits for them, and she had enjoyed the fact they had seen her boobs and cunt.

To her pleasure, she found that the wardrobe was open when it was time to dress – and she had access to a full range of clothes, which had clearly been placed inside it some time during dinner. She immediately dressed in the longest skirt she could find, and a loose T-shirt and concealing sweater.

Avery, meanwhile, had dressed in a tiny skirt and a shirt that only just came down beneath her tits. She didn’t seem to be wearing underwear.

“Maddy!” she complained when she saw Madelyn’s outfit. “We have to dress nice, remember? We have to look fuckable.”

Madelyn didn’t want to look “fuckable” for her uncle and cousin – but Avery was right. And she was being extended a privilege, being able to pick her own clothes, and wear a complete outfit. She had been worried she would be forced to go around half-dressed, as she had last night.

She reluctantly re-dressed in a cute skirt, expensive panties, and a flattering shirt that hugged the shape of her tits, with a push-up bra to emphasise her boobs.

The truth was that this was an outfit she would have happily worn anyway, back at home. She would have called it “cute”. But the truth was that it was sexy, and it did indeed make her look “fuckable” – and knowing that she was deliberately dressing herself up so that her uncle and Logan would fantasise about fucking her made her feel dirty and objectified.

She looked at Avery.

“You should really wear underwear, Avery,” she said.

Avery pouted. “But if feels good to go without,” she said, “and daddy will like me better this way.”

“You don’t have to do that,” said Madelyn. “Uncle Logan is being mean to us, Avery. We shouldn’t try to please him.”

“He hasn’t done anything mean to us!” objected Avery.

Madelyn’s eyes widened. “He chained us to our bed, Avery!” she said. “He made us go to dinner half-dressed. He made me call myself a whore. He took our phones away.”

Avery turned away from Madelyn.

“Maybe you didn’t like those things,” she said. “But they’re good for us, Maddy. We haven’t had a father and we’ve… we’ve learned all kinds of wrong things. We should be nice to our new daddy.”

And that was the end of the matter. Avery wouldn’t hear any more complaint.

They went out to breakfast. Uncle Sean and Logan were waiting.

As they had been instructed to do, the girls kissed their relatives. Madelyn kissed Uncle Sean first. “Good morning, daddy,” she said, and then locked lips with him, pressing her large tits against his chest.

Out of the corner of her eye she saw Avery kissing Logan – and saw Logan’s hand curl around Avery’s buttocks, sliding up under her skirt, and presumably discovering she was wearing no panties. When Avery’s kiss ended, she giggled as she bounced away from him.

And then it was Madelyn’s turn to kiss Logan, and she squirmed as he thrust his disgusting tongue into her mouth, and pulled her close to him.

When it was done, Logan said, “Look what you’ve done, you whore.”

Madelyn didn’t understand.

Logan pointed at his crotch. There was a visible erection.

“Take it out, Logan, and show her what she’s done,” said Uncle Sean.

“No, that’s…” said Madelyn.

But Logan was unzipping his fly and taking out his dick, right here in front of her and Avery. It wasn’t the first time Madelyn had seen her cousin’s cock, but it was the first time she had seen it sober. She was entranced by its size and hardness.

“If you’re going to be a slut in this house, there are consequences, Madelyn,” said Uncle Sean, from off to the side. “From now on when your cockteasing makes us hard, we’re going to show you what you’ve done. And speaking of which…”

Uncle Sean took his own cock out – just as hard as Logan’s.

This wasn’t normal, Madelyn knew – to be exposed to the hard cocks of her male relatives. And yet she didn’t know what she could do about it.

“Apologise for being a disgusting slut, Madelyn,” said Uncle Sean. “And say you deserve to be raped.”

“What?” said Madelyn. “I don’t – I can’t…”

Without being asked, Avery walked up to Madelyn and slapped her across the face.

Madelyn gasped.

“Do as daddy says, Madelyn,” said Avery.

“I’m… I’m sorry,” said Madelyn.

“Sorry you’re a disgusting slut,” prompted Logan. “And that you deserve to be raped.”

“I’m sorry I’m a disgusting slut,” whimpered Madelyn. “I deserve to be raped.”

“Good girl,” said her uncle.

Neither he nor Logan put their cocks away. But Madelyn and Avery were instructed to prepare breakfast, and at some point while the girls worked in the kitchen, the men’s cocks must have softened, because when Madelyn finally sat down to eat breakfast, their dicks were back in their pants.

After breakfast, Uncle Sean stood up and began to stare at Madelyn. Specifically, he was staring at her tits.

And then, after a few moments, he unzipped his pants and took his cock out. It was hard again.

Madelyn squirmed. She knew what she wanted, and after a few moments, she gave in.

“I’m sorry I’m a disgusting slut,” she said. “I deserve to be raped.”

“Come over to the couch, girls,” said Uncle Sean. “It’s time to look at your phones.”

The girls went to the lounge, and Uncle Sean patted to indicate that one of them should sit on his lap.

Madelyn hesitated. Uncle Sean’s cock was still out.

But Avery wasn’t hesitating. And Avery wasn’t wearing panties.

Quickly, Madelyn pushed past her and sat in Uncle Sean’s lap. She could feel his cock pressing against the crotch of her panties, under her skirt.

With some disappointment, Avery sat next to them.

“Alright, Madelyn,” said Uncle Sean. “Here’s your phone.” She showed her her cute pink iPhone. “Now I need you to unlock everything on your phone, and give me access to all your social media accounts.”

“Do I have to?” Madelyn whined. “They’re mine.”

“Yes,” said Uncle Sean sternly. “You’ve been quite the slut, Madelyn. You need someone to exercise some control over your internet access. Now do as you’re told.”

And so Madelyn was forced to give Uncle Sean all her passwords and passcodes. Logan came into the room, and sat with a laptop across from them, and as Madelyn read out each password, he took a note of it.

Uncle Sean insisted on scrolling through her entire photo gallery on her phone, and Madelyn blushed, as some of her selfies weren’t entirely suitable for the public. In fact, there were a couple of photos of her completely nude, and she had to sit in Uncle Sean’s lap as he stared at them, feeling his cock twitching against her cunt.

Then he went through all her messaging, and she blushed bright red as he read the messages where she’d described sexual fantasies to friends, and talked about boys she had a crush on. Here and now, it seemed like every thing she’d ever said online was either embarrassingly infantile, or unbearably slutty.

And then, worst of all, Uncle Sean went to her browser history, and he very quickly found the porn sites that Madelyn had visited. They weren’t particularly extreme – just handsome men with large cocks. But he asked her questions about them.

“Did you fantasise about sucking this man’s cock, Madelyn?” he said, playing a video of a man with a huge cock slapping his dick against the face of a kneeling naked woman.

“Yes,” Madelyn was forced to admit. Her own cunt was wettening embarrasingly as she stared at the video.

“Did you get wet imagining this man raping you in the ass, Madelyn?” he asked, on another video depicting a big-titted blonde receiving anal sex from a muscular man.

“Yes.”

“Did you finger your twat while imagining this man cumming on you, Madelyn?” he asked for another.

“Yes.”

And then, finally, the ordeal was over. She had given up everything to Uncle Sean, and he finally allowed her to stand.

Looking down, she saw that Uncle Sean’s dick was wet – a combination of her own cunt juices which had soaked through her panties, and his own pre-cum.

And he was looking at Avery.

Madelyn suddenly panicked. Avery couldn’t sit in his lap. Her beautiful younger sister couldn’t have that disgusting hard dick probing at her panty-less cunt.

“Um,” she said. “Daddy, could I talk to you before we do Avery? Without Avery in the room?”

Uncle Sean looked at her, and then Avery.

“Avery, go to your room,” he said. “We’ll call you in a minute.”

Avery pouted, but flounced away.

“What is it, Madelyn?” asked Uncle Sean when she was gone.

“Daddy, could you… could you please put your dick away before she sits in your lap?” asked Madelyn.

“Why?” said Uncle Sean.

“Well, it’s not her fault you’re hard,” said Madelyn. “Because… because I’m a disgusting slut and I deserve to be raped.”

“And yet, my dick is hard,” said Uncle Sean. “Why should I put it away?”

Madelyn blushed. “Avery isn’t… she isn’t wearing panties. If she sits on your lap – well, there’s a pregnancy risk…”

“That feels like a decision Avery made deliberately,” said Uncle Sean.

“Could you at least make her wear panties?” begged Madelyn.

“I think that would be a bad lesson for her,” said Uncle Sean. “And I’m afraid my dick will stay out for as long as it’s hard, Madelyn.”

Madelyn felt like crying. She pictured Uncle Sean’s dick sliding into her sister’s wet pussy – her sister’s innocence being taken by this disgusting man.

She couldn’t allow it. No good sister would.

But what could she do?

An idea came to her. A horrible idea.

“Could I… could I help make it not hard?” she said.

He stared at her tits.

“I don’t think you could,” he said.

“But… it gets soft after… after you’re done, right?” said Madelyn.

“You mean after I cum?” asked Uncle Sean.

Madelyn bit her lip. “I could… I could make you cum,” she said. “And then… then you could put it away. Before Avery sits in your lap.”

Uncle Sean looked at her.

“Are you offering to take responsibility for our cum, Madelyn?” he said.

She swallowed. “Just once,” she said. “Just now…”

“No, here’s the deal,” said Uncle Sean. “All of my cum, and Logan’s, goes in or on you. And we’ll see that none of it goes into Avery.”

She stood there, open-mouthed, shocked.

“You don’t have to produce the cum,” he said. “Other than right now. But you’re responsible for disposing of it. On your skin, or in your holes. Agreed?”

If she said yes, they would leave Avery alone.

“Okay,” she said, quietly.

Uncle Sean nodded. “It’s a deal,” he said. He looked down at his cock. “Okay, make it happen.”

Madelyn dropped to her knees in front of him, and put her right hand on his cock, and began to pump it.

Uncle Sean sighed, and leaned back in the chair.

“Think about where the cum’s going to go, Madelyn,” he warned her.

It was a good question. On her, or in her. She was currently pointing his cock at her face. If he came on her face… Avery would see it. Avery would know what had happened.

In her mouth, then? She had swallowed Logan’s cum at the bar. But she didn’t want to put her mouth on her uncle’s dick. It was gross, and it would give him ideas.

She kept pumping, and after a moment, she made her decision. She lifted her shirt up to her neck, and then pulled her tits out of her bra. Her uncle had seen her tits before – in real life, and in photos. It wasn’t really anything new.

Then she pointed his cock at her breasts, and kept pumping.

Soon he reached his climax. She heard him moan, and his cock twitched in her hand, and then he was pumping cum onto her chest. She felt his hot, sticky sperm splatter over her titflesh.

“Good girl,” he sighed.

When it was done, she lifted her fingers – covered with his semen – to her mouth, and licked them clean. She returned them to his cock, scooping the slime and cum off it and transferring it to her mouth, until his cock was clean too.

Then she put her sperm covered tits back into her bra, and pulled her shirt down over them.

“Very good, Madelyn,” he said. “You’re a very good sister. Let’s call her back, shall we?”

And even though Madelyn knew she had saved her sister, she trembled at the idea of what she had agreed to.

All of Uncle Sean and Logan’s cum – either on her skin, or in her holes…

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