His Sister's Keeper
Copyright© 2026 by ghostwritten after dark
Chapter 9
Incest Sex Story: Chapter 9 - 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
Rachel rushed over after listening intently, her naked tits bouncing as she crossed between a splayed-out Gwen and a bound Joey. The two siblings were still confined to their makeshift prisons; Gwen restrained to a contraption on the bed for men’s pleasures, and Joey strapped to a chair forced to watch it all happen. Rachel had been listening through the wall to what was going on in the hall.
“We’ve got a minute,” Rachel said quickly. “The last guy finished so fast, Cas hadn’t explained everything to the next one yet. How are you two holding up?”
“Where’s Joey? Is he ok?” a worried Gwen asked. It broke Joey’s heart. Here she was, getting used like a town bicycle, and she was only concerned about him.
“He’s been gagged, Gwen. He’s ok; he’s still right here,” Rachel explained. “Joey, you ok?”
Joey could only shake his head no.
Rachel understood. “I know, it must be tough to watch. Your sister’s handling it quite well though, better than I did my first time.”
“They did this to you?” Gwen asked, licking some cum from her lips.
“Hm, a ton of times,” Rachel said grumpily. “The first time, I think by the third or fourth guy, I freaked out. They gagged me because I wouldn’t stop screaming and begging them to stop. Apparently, it was freaking out a bunch of the guys so much, many stopped and wanted refunds.”
“MHhmh mmMHmm???!?!” Joey muttered into the cloth gag in his mouth.
Rachel nodded, she knew what he was trying to say before Gwen could even ask. “Yes. They’re charging twenty bucks for ten minutes.”
“Oh, my God,” said Gwen disgusted. “So much for that brotherhood bullshit...”
“We’re a means to an end for Todd’s twisted campaign. That is his end goal, or so he says.” Rachel’s head lifted up. “Shit, they’re just about ready. Hang in there, ok? Joey, I’ll take care of that hard-on of yours when I can. Gwen, a few more loads and I’ll help clean you up.”
The door opened and Cas stepped inside with Duncan. “What are you doing, bitch?” Cas said angrily.
“There was a break, so I was just checking things,” she said, scampering back to her chair.
Cas sounded angry. “If you fuck with anything, I swear your ass will be on the bed next to hers. We can double the profits tonight.”
“I won’t. I didn’t,” Rachel replied and went silent.
“Good. Alright, you’re on the clock now,” Cas told Duncan. “Cool!” said Duncan as the door shut.
Duncan quickly pulled off his clothes and headed to the bed, examining the girl strapped down to it. Duncan turned his head and looked at Joey and grinned. “Hey, Joe, this must be the famous sister of yours. Must admit, pretty jealous.”
Naked, Duncan was even thinner than his clothes made him appear. At over seven feet tall, the skinny brown-haired guy looked huge compared to the smaller Gwen, as he climbed onto the bed. Everything was proportional to his size, even his cock. It was quite thin, especially compared to the last guy, but it was the longest one of the night so far. It was just over nine inches long. He placed the uncircumcised head against Gwen’s opening and turned back to Joey.
“Think she can take the whole thing? Most can’t,” he smiled wide and pushed himself inside.
It slid in easily; her pussy hadn’t fully recovered from the last guy. But to Gwen’s surprise, it seemed like it just kept going into her. It felt like a sharp finger when it finally collided with her cervix. She let out a sharp squeak when it did.
“Oooo ... just about there,” Duncan said. Joey could see half-an-inch remaining outside of Gwen’s body. “Oh well, most take less.” He started fucking Gwen, pulling most of his monster out before plunging it back in as deep as it could go. It stung just a bit each time he hit her limit, making Gwen grimace.
“Fuck, you’re an absolute treat,” Duncan said to Gwen. He gripped her tits hard in each hand and roughly dug into her feminine flesh. “Might be the best twenty I’ve ever spent.”
Gwen was panting, she was getting used to some of the pain now and it was feeling better. He seemed to know more about what to do than the last guy. She couldn’t see him, but based on where his limbs were, she could tell he was tall.
“Tell me, Joe’s sister, you always been a slut like this?” he asked as he tweaked her nipples.
“No ... I was a virgin ... a week ago ... Oooooo” Gwen moaned, unable to stop the buildup of another orgasm.
Duncan laughed as he fucked her, “And now you’re a twenty-dollar whore. That’s quite the transition ... and Joe, here?”
“It’s Joey. We’re being blackmailed ... we don’t have a choice...” said Gwen trying to think of her brother again, but the long dick was making that difficult.
Duncan looked at Joey and then back down to Gwen, “That sucks for you ... good for me though. I might want to see you again.”
“Not ... going to happen ... Todd ... uh ... Todd runs things ... ah...” Gwen was now riding the edge of another orgasm.
Duncan fucked faster, his thin dick bending each time it entered Gwen’s canal and smacked into her cervix. Joey could see she was taking all of it now, as the tall guy’s balls banged against her ass.
“I think me and the boys, if they like you too will rent you for the whole night ... UHHhhnhn!” Duncan groaned and came hard.
KNOCK KNOCK
“One minute left,” Cas said through the door with impeccable timing.
Gwen felt his cock lodge as deep as it possibly could, right up hard against her cervix and forced his seed directly into her waiting womb. The final thrust pushed her over and she came hard, crying and struggling against her shackles as her body constricted in spasms. She felt a small surge of wetness come out when her muscles tightened. She wasn’t sure if it had come from her or if it was just overflow from Duncan’s internal deposit. Despite her situation, she still would have been embarrassed to have peed on Rachel’s bed.
She felt Duncan’s rod withdraw, and he climbed off of her. Another torrent of cum oozed out of her, adding to the ever-expanding wet spot beneath her butt. She lay there desperately panting again, getting air back into her lungs before the next guy walked through the door and she was back to moaning and groaning. She wondered how many guys she was going to entertain tonight and what would be left for Joey when it was his turn.
“You’re a sexy little bitch,” Duncan said, running his hand up Gwen’s trembling body. “I mean that in the best way possible.”
Gwen didn’t know how to take that, she was tied to a bed after all. “Thanks, I guess...”
“I mean it,” he said. She felt his lips touch hers. “I hope to see you again. Joe- Joey, you have an amazing sister. I’ll see you both around.”
Gwen heard footsteps and a door opening and closing. She didn’t know what to make of that interaction. What was she supposed to think? Would Todd really sell her for the night? She knew immediately that he would. She didn’t have time to think more about it as the door opened and the next person entered.
“Look at the fuckin’ banana creamed hair pie,” the new deep-voice said. “Shit, I didn’t realize it was the fuckin’ 70s again, bro.”
Joey could see a muscular black man stripping off his clothes and waddle over to Gwen’s bedside. He looked about six-foot tall and was ripped with multiple muscles Joey didn’t even know existed. Below the waist, the guy sported a six-inch cock, but when he turned toward Joey, he could see the thing was as thick as a small tree trunk.
“Hey bro, word is that’s your sister,” the guy said to Joey. He pointed to Gwen’s pussy and laughed, “I’mma destroy that thang.”
Gwen felt the new stranger leap on top of her, with what felt like the end of a baseball bat between her legs. She got nervous again, and sweat dripped from her head onto the moistening pillow.
“‘Sup slut? Eva been with a brotha before?” he said in exaggerated fashion.
Gwen replied pointedly, “I’ve got a blindfold over my eyes, and I’m tied to a bed. How would I know who I’ve been forced to fuck tonight.”
Gwen knew she’d had one already, at least if what he’d said was true. Still, she wasn’t going to tell this random asshole anything. She had to go along with this, but she didn’t have to constantly engage in these demeaning conversations.
“hehe ... fair point. I’ve been told you’ve got a tight-ass cunt ... I’mma gonna stretch that shit out wide...”
She felt the bat slide up and down her sloppy slit, getting it good and lubed. No one else had done that yet, and it made her wonder if this thing would actually fit into her. When he pushed, it felt like someone was trying to jam a fist through a keyhole. Gwen grimaced in pain as her walls slowly stretched to accommodate the bulky batteringram.
“Ah shit ... you got a tight lil’ twat ... but I’mma get in ya,” he said. As the guy turned his face towards him, Joey could see this guy’s face scrunched up, like he was in pain, too. Joey hoped he was. He hoped Gwen broke the guy’s dick off. Yet with persistence and the slick lube of several other men’s jizz, he pushed in with a look of relief. Gwen, though, was still struggling as the man pumped his thick dick in and out of her. She bit down on her lower lip to keep from howling as the prick stretched her to her limit.
“Oh yea ... now you got a real man inside yo’ tight shit ... I ain’t no pencil-dick queer, you got the real deal here, girl.”
Gwen was whimpering with each thrust. She felt her flesh being pulled in and out every time he moved. It hurt, and yet felt good too. Tears ran down her face and onto the blindfold, making it wet. She couldn’t bite her lip to stay silent anymore; she was grunting each time he pushed inside her.
“You’re liking it now, ain’t ya ... hahaha...” he laughed as he fondled her chest. “I wanna hear you cum ... I wanna hear you cummin’ on my big-ass black cock, little white bitch.”
“N-no.” Gwen fought her urges strongly.
He squeezed her tit harder, making her cringe before letting go, then...
SLAP!
She felt a hand slap across her right breast. It caught her by surprise, making her moan loudly.
“Ah yea ... there it is. Nasty little white bitch likes it rough...”
SLAP! SLAP!
“EEeeekkkk!” Gwen shrieked as the hands slapped each of her breasts rapidly. It made her clench up, which both hurt and felt good. She was going to cum again.
“Aight ... I’mma blow such a large load in you, your granddaughters gonna be havin’ baby brothas.”
“Fuck, fuck, fuck, fuck ... FUUUUUCK!” Gwen yelled, as her orgasm tightened up her body till it hurt.
“OH FUCK!” he yelled and released a massive load of cum inside of her. She was so tight that none could escape until he finally dislodged himself from her. It then rushed down and out of her like a broken dam. He dressed and left just as Cas knocked on the door for the time limit.
Joey saw movement from Rachel’s chair, as the girl stood up and peeked between Gwen’s legs. Moving out of his field of view, he heard the door open and a few whispered voices. It was followed by the door shutting again.
“You’d better not be wasting time, bitch,” Cas’ voice rang out. He looked at the mess between Gwen’s legs and nodded. “Alright, you’ve got five minutes to clean that mess up before the next one. We’ve got a line forming.”
The door shut again and Rachel rushed back to the bed.
“How are you feeling, Gwen? You’re doing so great,” Rachel asked, lowering her head between the girl’s legs.
“My legs hurt, my arms hurt, and I can’t stop twitching and shaking,” Gwen replied, before asking, “How’s Joey doing?”
“He’s ok. I’m pretty sure he’s more worried about you,” Rachel said, as she looked into Joey’s eyes. “I have to clean you now. Iit’ll feel weird. You’re free to talk though. Joey and I are listening.”
“Joey,” Gwen said as tears began to flow. “I wish I could see you; I wish you could talk me through this ... I think the worst part of all of this is feeling alone.”
Rachel pulled her face from Gwen’s pussy, it was covered in cum. “You aren’t alone. Your brother will be here the whole time. He doesn’t have much of a choice.”
Rachel lowered her head back down. Sounds of slurping and sloshing filled the room as Gwen groaned uncontrollably again. Joey watched his sister orgasm again as more sweat dripped over her head. Down below, he could see Rachel’s tongue and fingers digging in to scoop out the sloppy remnants of Gwen’s previous guests.
“Todd’s not going to sell me to people, right? Like beyond this?” Gwen asked nervously. She hated this, but at least she could explain going to a party. She didn’t know how she’d explain to her parents why she had to go out all night if what Duncan said was true. She was also worried about not having Joey, or even Todd’s crew, such as they were, to protect her. They were bastards, but Todd kept people mostly in line.
Rachel pulled her face away, it even looked worse. “What that one guy said? No, Todd’s never sold someone for a night. not even me. He will give you out here and there to get stuff from people though; like the sheriff, to keep himself and his boys out of trouble. That’s why the cops never come to break up these parties or report on blackmail. Todd’s got protection.”
“Am I really just a piece of meat now?” asked Gwen.
Rachel looked down at Gwen’s still gaping pussy hole; flecks of cum dotted the reddish-pink interior. “Yes. That’s all we are, at least for now. At least you have your brother, and you get to leave in five weeks. I get to do this again and again...”
The door opened, Cas entered with Todd following behind.
“How are things? What’s the situation?” Todd asked calmly.
Rachel stood up, “She took several large loads, so I was cleaning.”
“Yes, Cas told me.” Todd walked over to Gwen’s side, “ ... and how are you doing? I’m hearing rave reviews.”
“I ... I’m doing what I said, per the agreement...” Gwen said nervously. She was never sure what Todd was going to do. She felt a hand touch her again. It rolled over her left breast and circled the nipple until it stood up.
“Then let’s keep it going. Bring in the next one,” Todd said with a laugh. “Maybe I’ll send in two at a time later. Had someone ask for a second round, so we’ll see how the night goes.”
Todd turned to Joey, “How’s the show? Have a good view of your sister in action? I’d say yes by the look of that boner you’ve got.”
“Would you like me to take care of it for him?” Rachel asked her brother.
“Not yet. I don’t think he’s learned his lesson yet.” Todd leaned down in front of Joey. “I hate doing this to you, Joe, but you did this to yourself. Follow my lead or these things will happen, both to you and your sister ... understand?”
Joey nodded as best as he could. He couldn’t do much of anything else in his position anyway.
Todd stood back up and pointed to the door. Cas opened it and another guy walked in. Rachel retreated to her chair and Cas and Todd headed to the door. “Have fun you two,” said Todd from the doorway. “Only four more hours to go.”
“WAIT! FOUR HOURS!?” Gwen screeched.
Todd laughed, “Yeah, it’s 8:00 now and the party ends at midnight. Later.”
Gwen heard the door shut and felt the movement of another person on the bed. She started quietly sobbing to herself as she felt another stranger’s penis shove inside her. She flinched and shut her eyes, not that she could see anyway. It just helped calm her, like this was all just a bad dream.
The new guy didn’t speak; he just fucked her roughly. It didn’t really feel like he knew what he was doing or he just wanted to get off as quickly as possible.
“Ah, fuckin’ ... baby...” the new voice said grunting. He didn’t last more than a few minutes before quickly adding his spunk to Gwen’s growing internal DNA collection. He pulled out and left swiftly without saying another word. He was quickly replaced by another guy and the cycle continued.
From his chair, Joey watched as a parade of guys had their turns with his helpless sister. He couldn’t believe Gwen wasn’t screaming or crying after the third or fourth. As the night wore on, Joey was having a difficult time concentrating on anything. It was all melding into a jumbled mess of grunts, flesh, and jizz.
He was trying to keep track, as Todd told him, but he was becoming desensitized to everything going on in that room. Gwen was on her seventeenth ... no eighteenth guy of the night. Most took the opportunity to cum inside her unprotected pussy, but a few pulled out and put it elsewhere. Three came in her mouth, while one wanted to paint stripes across her tits. Rachel had to stop and lick her clean after that one. They hadn’t even allowed Rachel to give him a release, saying he hadn’t learned his lesson yet. His balls felt heavy and ached like he hadn’t gotten off in a month.
Renny was manning the door now, Cas having swapped to do whatever else they did outside of that room. The door opened for the next guy, The trapped Tanners waited to hear the usual lines, before their individual torments resumed.
Renny’s voice said, “Twenty minutes, starting now.”
The change woke Joey from his dazed state, turning his head to look at this new individual. He was shocked to see a tall lanky girl with neck-length black hair stripping off her clothes. As she pulled off her panties and bra, Joey could see she didn’t have anything in the tits or ass department. If he hadn’t seen her shaved slit with thick, dangling meat curtains he’d have thought she was a boy. As she walked toward the bed, she spotted the chair with Joey strapped to it.
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