His Sister's Keeper - Cover

His Sister's Keeper

Copyright© 2026 by ghostwritten after dark

Chapter 8

Incest Sex Story: Chapter 8 - Joey and Gwen Tanner, two close and loving siblings, are excited when they arrive for a six week summer vacation near a small lake. One lapse in judgement though, could turn their whole world upside down. To make it through the summer, they'll have to do things they never imagined. Can their bond overcome the challenges ahead, or will they be warped and manipulated into something they never expected.

Caution: This Incest Sex Story contains strong sexual content, including mt/ft   ft/ft   Teenagers   Blackmail   Coercion   Drunk/Drugged   NonConsensual   Heterosexual   Fiction   Incest   Brother   Sister   BDSM   Humiliation   Light Bond   Rough   Spanking   Gang Bang   Group Sex   Anal Sex   Analingus   Cream Pie   Double Penetration   First   Facial   Oral Sex   Petting   Water Sports  

“How bad do you think today’s going to be?” Joey asked as he rolled out of bed in the morning.

“Well, if it is anything like yesterday ... bad,” Gwen replied as she stretched her arms over her head.

The sheets fell off, revealing her naked breasts to her brother. Despite seeing her naked a lot in the past few days, and the flurry of sexual activity they’d engaged in, he still got hard looking at her. For Joey, she’d gone from his cherished and beloved little sister into an object of lust. The lines of right and wrong had blurred so much, it was like he was drunk.

For Gwen, she was just trying to hold it together. The previous day was both better and worse than she thought. Throughout the day, one of the boys would show up and take her into the woods, where he’d make her do some sex act or another. By all accounts, she’d swallowed four loads from blowjobs and had sex nine times that day, eight of which finished inside her. The other was Renny, who thought it’d be fun to cum on her ass.

Her only solace came later, relaxing in the hot tub with her brother. Free from the constant assaults, she was able to let her hair down in relative safety. When she crawled into Joey’s bed that night, she asked him to do one thing: make love to her and hold her till she fell asleep. He didn’t let go until they woke up that morning; that was very good.

The bad for her, and it was a growing concern, was that it was just the first real day of the rest of her summer. She expected and dreaded that things could only get harder for her. They hadn’t touched her ass yet, but she knew that was just a matter of time. She’d given it to Joey first, and would do so again, hopefully before it became a new active slot for them to play with. Beyond that, she didn’t even know what they might do to her over time. The worst part, and she was having a tough time admitting it to herself, was that she was enjoying some of it.

She pushed that from her head as she thought about the day to come. While yesterday was tough, today was going to be something else entirely. It was the Fourth of July, Independence Day for everyone but Gwen. She didn’t feel very free, and she knew the looming dark clouds on the horizon were in the form of a party at Todd’s. She feared what they had planned for her tonight. That fear only grew worse when Joey and Gwen went to the busy beach.

There was barely a place to set up a couple of towels to relax. The sandy part of the beach was wall to wall with people, and the swimming area was crowded. They found a small patch of grass and put down their towels. Gwen had her suggested bag of supplies with her, expecting to be dragged into the woods again at any moment ... but it didn’t happen. Instead, they watched the cacophony of noise, chatter, and splashing happening all around them.

“Oh my God, there’s Cas,” Joey said, trying to blend in with the crowd.

Gwen didn’t bother; she watched him walk over and readied herself for a rough ride in the woods. He came up and stopped next to them; his face painted with a friendly smile. Both the Tanners knew what lurked beneath that exterior shell, though.

“What are you two doing here?” he said, standing above them.

“Just trying to relax, buddy,” Joey replied.

Cas laughed, “Relax? This place is too busy for that. You should go to the pond if you want to do that.”

“Yeah, and who exactly would be waiting for me there?” Gwen said sharply.

Cas paused and scouted around. “Well, I think Rachel’s there ... I think that’s it. Renny and I are socializing, and Todd is off doing ... whatever Todd does.”

“Praying to his lord Satan, most likely...” Gwen quipped before realizing she shouldn’t have.

Cas’ smile twisted into something grotesque. “Careful, you’re the one on your knees most of the time ... girl.”

Gwen knew she’d stepped in it and she awaited her punishment.

Cas’ smile robotically returned to being friendly, though, and he continued, “Anyway, I should get going. The pond is better, but stay here if you want. See you both, tonight.”

With that, Cas walked off, waving. They watched him stop and talk to different people along the beach, being jovial and friendly. It looked like they were inviting people to the party tonight. The entire thing made Gwen very nervous.

“I don’t like this, Joey,” she said, watching Cas go from group to group, chatting and laughing.

Joey agreed, “Something’s definitely up, but what are we going to do about it? Should we go to the pond? I mean, Rachel’s there at least.”

“No, that’s what they want. I say we stay here until dinner, then ... I don’t know, I guess we go to that fuckin’ party.”

Joey shook his head and said, “That’s exactly what I’m afraid of.”


The day flew by and yet at no point did Gwen have to fuck or suck anyone. A growing lump of anxiety built in the pit of her stomach each time she’d see Todd or one of his goons walk by, and nothing happened. At various points, they’d stop and chat, like it was the most normal thing in the world. They’d then leave, waving friendly-like, and say they looked forward to later that night. Often, they’d suggest Joey and Gwen escape to the pond, which just made them root themselves deeper to where they were.

There was a growing lump for Joey too, only it was in his shorts. While he didn’t enjoy seeing his sister suffer, he was getting used to taking advantage of her newfound services. He already felt guilt for putting her in this situation, let alone benefiting from it. As they both waited for the shoe to drop, Joey didn’t want to be the one to start the festivities on Gwen. He could have asked her into the woods himself, and she would have willingly gone, but he didn’t want to be an imposition on her. He simply suffered, tucking away his erection down his shorts when he had to.

The stress on both of them grew as they made the long walk to Todd’s house in the evening. Gwen had chosen to wear a simple black skirt and white top, with basic underwear underneath. She had to dress somewhat like her normal self because her parents knew they were going to a party that night. If she had left in baggy shorts and a grubby shirt again, they might suspect something was wrong. She had packed her little backpack with all the essentials, including the lube, just in case, as they had headed out the door together.

“How are you feeling?” Joey asked as they walked past the now partially empty beach.

Gwen swallowed nervously, “Terrified ... you?”

“Scared for you, honestly.”

“Hm,” Gwen said as they walked along the street. “Remember last summer when we went to Six Flags, and you convinced me to ride that ultra-scary roller coaster?”

“Yeah.” Joey didn’t know where this was going.

Gwen continued, “Right now, every step I take toward that house feels like climbing that first hill. I’m leaning back, my heart’s in my throat, I can hear my pulse thumping in my ears, sounding like the cars on the lift ... clack, clack, clack ... ratcheting up as I climb that first hill. I know when we reach the door, everything will pause...”

“And then?” Joey asked, entranced.

Gwen gulped again, “ ... and it’s the uncontrolled fall. Then terror and screaming; the feeling of my stomach dropping into my ass and the feeling I might piss my pants at any moment...”

Gwen’s hands were already trembling. Joey lovingly took them into his own and held them still. “But then it was over...” he said reassuringly. “You survived it and even rode it again. You’ll survive this too.”

“Thanks, Joey ... that’s why you’re my rock in this,” she smiled briefly before it faded as they turned onto Todd’s Street. They were reaching the peak, and soon there was nothing but the plunge.

Joey rang the doorbell. The sounds of partying and people inside told them that this was going to be a lot bigger than the first party. It did make sense; the town was probably at its busiest during the Fourth celebrations, especially since it was a long weekend.

“Look who’s here, glad you made it,” Renny said as he opened the door. He looked at both of them with his cruel, cold eyes while feigning a smile.

From the entranceway, they could see the living room looked the same as the first time, though crowded. It didn’t seem like there was a bed in the middle of the room, which put Gwen slightly at ease. Still, though, she needed to keep her guard up at all times and expect anything. She just wished she had any control to stop something if it happened.

“Hey, Renny,” Joey said, still clutching his sister’s hand. He didn’t want to let her go. He learned that lesson the hard way during his first visit here.

Renny put his arms around both their necks, pulling them closer than they’d like. “We’re gonna have some fun tonight, alright. Hey, Tits,” he said to Gwen. “Want me to make you a drink?”

Gwen pulled away. “No, thank you.”

Renny roared with laughter. “Have it your way. Drop your bag upstairs in Rachel’s room. Joey, Todd wants to talk to you.”

Joey nodded, “OK, where is he? I’ll talk to him after helping Gwen with her bag.”

“Hahahaha ... fuck, Joey!” Renny laughed, “Do you wipe her after she pisses and insert her tampons, too? Grow a fuckin’ pair, would you? One step forward, two steps back with you bitch-boy. Todd’s out back; he expects you there now.”

Renny held up his phone, showing he had already texted Todd about their arrival. Joey saw the worried look on his sister’s face, but both of them knew they had no choice in the matter. If they complained or left, everyone they knew would get an eyeful of their dirty deeds. No amount of explaining or talk of blackmail would fix the cold, hard evidence of them having sex together.

Their hands separated and Joey watched his sister head upstairs while he cut his way through the crowd to the back door. There were a lot more people than even he expected, as he ventured to the back deck to find Todd. There were kegs and coolers of beer and other alcohol bottles everywhere. It must have been what they’d left the other day to get. It had to have set them back a lot.

He finally spotted Todd standing in a group of guys chatting like a normal human. They were laughing about something, all of them with drinks in hand and in good spirits. As Joey approached, he remembered he hadn’t seen Cas or Rachel yet. He assumed they were somewhere within the house; he hadn’t been everywhere after all. They might have been out of sight in the living room, but it did put a knot in the stomach not knowing where they were.

Splitting through a gaggle of girls clustered together, Joey neared Todd’s group. Todd looked up and saw him, raising his drink to greet him.

“Hey, Joe, my boy. You made it,” Todd said excitedly. It immediately threw Joey off, since the ‘real’ Todd was never this animated; he tended to be more reserved and restrained. It seemed evident to Joey that this was Todd’s friendly persona; the same one that had lured him in and ensnared Gwen and him.

“Hi Todd, great turnout,” Joey said politely, not wanting to piss off his host.

“Thanks. The Fourth, man ... always a great party, but some years are better than others.” Todd ushered Joey toward the group of guys. “Guys, this is Joe. Joe, this is Terry, Duncan, Rory, and Clive.”

A mash of “Hey/Hi/Sup” greeted the newcomer to the little group. The group comprised several guys who looked like they belonged on a basketball team. They were all well over six and a half feet tall with large hands and long arms. They seemed to tower over Joey, who wasn’t exactly short at just under six feet tall. “Yo Joe, where’s your drink, man?” The tallest of the group, Duncan, asked. While he was tall, he was also very slender. It looked like a soft breeze could blow him over.

Joey shrugged, “I just got here; I haven’t had a chance to get anything yet. I was told to see Todd when I walked in.”

“I’ll get you something ... beer?” Terry asked. He wasn’t as tall as Duncan but built thick; It was clear that he worked out.

Joey remembered what happened the last time someone was given a drink here and politely declined. “Thanks, but I’ll get one myself. I’m still looking for a few people.”

“Speaking of,” Todd said, “where’s your sister, Gwen? There are a few people I’d like to introduce her to.”

Joey heard the unmistakable sound of snickers from the group of guys around him. He felt a cold shiver run down his spine when he heard that. He wanted to get the hell out of there and get back to his sister as quickly as possible. He wanted to play it cool, though, so he wouldn’t raise suspicions.

“She should be around any minute now; she was dropping off her bag in Rachel’s room. Why don’t I grab a drink and find her?” he said, trying not to look desperate to find her.

Todd stepped towards him, “Actually, I’ll go with you. There’s something I want to talk to you about. Guys, I trust I’ll see you all later. Have fun.”

Todd put his arm around Joey and led him away. First, they stopped by a cooler where Todd pulled out a couple of icy cold beers. He cracked open both and handed one to Joey.

“Cheers! To the future!” Todd said weirdly.

“Uh ... Cheers!” Joey said back before taking a swig.

Todd started talking as they walked toward the house, “Joe, you’re doing good. I know how tough all this must be to watch, being it’s your sister and all, but I think you’re starting to get it.”

“I mean, yeah. I don’t like seeing Gwen hurt, or anyone for that matter,” Joey admitted. “I just wish this hadn’t happened and I wish you’d let her ... let us go.”

Todd smiled an uncomfortable smile. “I’m sure you do, at least that’s what you tell yourself. Secretly though, I can tell you’re having fun too. Cas and Renny both said you were looking rough throughout the day today, wanting a piece of your sister ... but you’re too good of a brother for that, aren’t you?”

“I just ... no ... We didn’t...” Joey stumbled for a minute before composing himself, “I didn’t know what you were going to do with her tonight. I didn’t want to add on after yesterday and tonight...”

Todd nodded like he cared and was listening, “I understand ... see, the problem you’re having is attachment. You’re attached to your sister; you love her, and I don’t blame you. You’ve been taught that your whole life ... I thought I felt the same way you did till I broke free and saw the truth. Women, all women, are for our personal use. We shouldn’t hoard them or keep them locked up with wedding rings. They should be shared for the good of all MANkind.”

Joey didn’t know what the fuck Todd was going on about; all he knew was each word he spoke made him more and more nervous for Gwen. She should have come back from Rachel’s room by now and found him, even with the crowded party going on. She hadn’t even texted him to ask where he was.

“You see, Joe,” Todd continued his diatribe as they entered the house, “we’re a brotherhood ... and we have needs. Now most of our problems in this world, and yes, some of our accomplishments, are due to wanting to impress women, but it shouldn’t be that way. It’s up to us to take what we want when we need it. Then let our fellow man have the next go. It’s just the fairest way to be. A better society; a more just and free society.”

“Who-uh ... who taught you this way of life?” Joey asked skeptically.

“I mostly learned it on my own, then it clicked, and I saw the world the way it should be ... the way it needs to be.” He paused, looked at Joey, and shook his head. “You think I’m crazy, don’t you? Most do; I wouldn’t expect anything less ... revolutionary thinking always has the hardest pushback from entrenched ideals in society. But I know... I know I’ve seen glimpses of understanding in you; we’re putting in the work before you go back to your feminized ways. I need to break you free from that, Joe.”

Joey’s heart rate was escalating; sweat dripped off his head. They ascended the stairs to the second floor, toward the bedrooms. He’d still seen no signs of Gwen or even Rachel. He was starting to think they’d open a door and he’d find them hanging from meat hooks or something. In a way, he was close.

 
There is more of this chapter...
The source of this story is Storiesonline

To read the complete story you need to be logged in:
Log In or
Register for a Free account (Why register?)

Get No-Registration Temporary Access*

* Allows you 3 stories to read in 24 hours.

 

WARNING! ADULT CONTENT...

Storiesonline is for adult entertainment only. By accessing this site you declare that you are of legal age and that you agree with our Terms of Service and Privacy Policy.


Log In