His Sister's Keeper
Copyright© 2026 by ghostwritten after dark
Chapter 6
Incest Sex Story: Chapter 6 - 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
Joey woke up the next morning holding his sister in his arms. She was cuddled up against him, her messy hair in his face. It was the second morning in a row they’d slept together, only this past night was more for comforting than anything else. He kissed her head and held her tight, his hands just below her breasts.
He could feel that the oversized shirt she often slept in had risen up, the bottom close to his hands. The warm softness of her legs pressed against his own. Thoughts of last night swirled through his brain, watching his cute sister getting fucked by different guys made their closeness uncomfortable. His dick grew in his boxers and pressed against her panty-clad ass. For a fleeting moment, he thought about using Todd’s philosophy. Pulling down her panties and fucking her right there, but he knew that wasn’t right. To avoid temptation, he tried to move his hips away from hers. Her hand reached over to stop him.
“Don’t go, please,” she said softly.
“I’m not going anywhere, don’t worry,” he said. “Did you sleep ok?”
“Kind of. I kept having dreams about ... you know. I’m so confused about things, but I feel better next to you. Safer.” Gwen pressed herself back against her brother. She took his hands in her own and held them between her tits.
Joey felt so much guilt for his sister’s pain. “You shouldn’t feel safe, sis. I fucked you just as much as they did. I was even turned on watching them.”
Gwen rolled over, her face inches away from Joey’s. “Is that why you’re hard right now? Were you thinking about that?”
Joey looked away, “Yes. I feel so ashamed of myself for it. I’m sorry.”
Gwen touched his face and guided it back to hers. “Don’t be. We’re both in this together, ok? No matter what, I need you to help me through this.”
“I just-” Joey was cut off by his sister’s lips on his. The kiss was soft and tender.
“No matter what,” she repeated. “Do you want me to take care of this for you?”
“What?!” Joey stared at his sister, he felt one of her hands rub the lump in his boxers. He nudged her hand away. “No, that’s ok.”
“Are you sure? I don’t mind. I’m going to be doing this a lot, whether I want to or not.”
Joey held her hand in his, “And I’d rather not add to that burden, especially after yesterday.”
“Ok, but just so you know, you’re the only one who has my permission,” Gwen added. “At least till the summer ends.”
“And then?”
“And then? Who knows what we’ll be like by that point. But for now, I willingly share myself with you.”
Joey ran his hand over his sister’s face. She had such a cute face, he thought to himself. He hadn’t really noticed that until all this started. She was just his best friend and little sister, now they were also lovers, in a way. It was all so confusing to him.
To Gwen, she needed Joey as her rock; an anchor point to hold on to so she didn’t drift away. She was afraid of getting lost in Todd’s demented philosophy and ‘teachings’. She could see how broken Rachel was, being treated like a dog. Gwen didn’t want that. She just needed to make it through till the end of summer mostly intact. She wasn’t about to lie to herself and say she’d put all this behind her when they got home. It would be impossible. She and Joey would never be the same; and then there was the high likelihood she’d be pregnant, which she did her best to avoid thinking about.
They stayed in bed together a little while longer, before finally getting out of bed. Joey left his room first, to make sure the coast was clear, then signaled for Gwen to make a break for her room. He got a brief flash of her panties as she went by, which didn’t help his erection problem. He waited in the bathroom till it subsided, then found his parents in the kitchen having lunch.
Gwen meanwhile changed out of her sleeping clothes, pulling off her night-shirt and taking off the panties she wore. They were the same one’s she’d worn to Todd’s and they were a mess. There were dried cum splotches all over them, and her pussy fur was matted with it near her slit. More must have leaked out overnight, even after trying to clean it up before going to bed. Beyond the superficial mess though, she thought she was doing pretty well considering. She’d take a shower shortly but wanted to get some food in her first. She was really hungry. She found Joey talking to their parents, eating a bagel with a glass of orange juice.
“Hi Gwen, you two got in late last night,” their mom said. “Seems like you’ve made some friends.”
Gwen awkwardly nodded, “Yeeah ... you know, meeting new people and all that.”
“Any plans for today?” Dad asked.
The siblings looked at each other. They didn’t really know. They couldn’t just hide from Todd’s crew, but they didn’t want to serve themselves up on a platter either.
“Not too sure, Dad,” Gwen replied.
“Yeah, we went out in the canoe yesterday, so who knows ... maybe the beach?” Joey added. Planning time out during the day had become much more complicated.
After they both showered, Joey and Gwen put on their swimwear and started their walk to the beach. Uncertain about what might happen, Gwen put on a pair of shorts over top of her bottoms. When they were far enough from the house, they were able to talk freely again.
“Why’d you want to go to the beach?” Gwen asked, her head on a swivel. She expected some kind of ambush as soon as they left the house, but there was no one.
Joey shrugged, “I don’t know. I couldn’t think of anywhere else to go. We’ll be able to hide you inside for a day or so. Would you like to go back?”
Gwen shook her head, “No, you’re right. Even if we could hide for six weeks, what kind of summer is that?” She paused for a moment, “Can I ask you something and you give me an honest answer, ok?”
“Of course. I don’t think there’s anything we need to hide from each other at this point; not that we did that much anyway.”
Gwen chuckled, “True. Ok, who did you like having sex with more, me or Rachel?”
Joey stopped and looked at Gwen, stone faced ... and then burst out laughing. “HAHAHAHA! ... Are you serious? That’s your big question?”
“Don’t laugh!”
“Jeez Gwen, you had me so freaked out. Are you feeling jealous or something?”
“No ... maybe, shut up!”
Joey touched Gwen’s shoulder, “If it makes you feel any better, it’s you. In fairness to Rachel though, she did nothing wrong. I actually felt really bad after what I did to her.”
“I saw you looking at me the whole time, was that...,” she trailed off.
“I don’t know. I just felt so angry and helpless watching them do what they did to you. I took it out on Rachel by doing exactly what they were doing to you. I didn’t even look at her.”
“I’m sorry,” Gwen said as they walked on.
“I’m the one who should be permanently sorry for this mess. I’m shocked you still talk to me.”
“What would being mad at you do? I’d still have to do this stuff, but I wouldn’t have my bestest brother to support me.”
“I’m trying, but I’ll be honest, it wasn’t easy sitting there and watching them do that shit to you. I don’t like people hurting you. And it turned me on, which just made me feel even worse.”
“I know. I heard you try to stand up for me, and I appreciate it. It must be tough having to watch it happen. Don’t feel bad about getting turned on, you can’t help it.”
His sister really was the sweetest. “You’re getting roughed up and fucked, and you’re worried about me. I really don’t deserve to have a sister like you.”
“You don’t,” she said with a grin. “But we’re stuck together.”
“Brat.” Joey had a question of his own brewing in his mind. “Since we’re being honest with each other and asking questions, what did you think when Rachel sat on your face.”
“First thought? Gross!” Gwen laughed. “Yeah. wasn’t my favorite thing to do. Maybe if I’d gotten to try it naturally, not leaking my brother’s jizz. I don’t know. I’m no lesbian, but I’m going to have to do it again, so ... yeah. Is it a cheat to say it felt good when she ate me?”
It was Joey’s turn to laugh, “Of course not. You looked sexy with her juice on your face though.”
Gwen gave him a playful shove. “If you think you’re going to goad me into a threesome...”
“I wouldn’t dream of it ... again.”
“Perv. Alright, one last question for you. Were you jealous watching them take me last night? Not angry, not guilty... jealous, jealous.”
“Yeah, kinda,” Joey admitted. “You’re my favorite sister. I shouldn’t think that way; I never used to before ... but yeah. I wanted to be in their place.”
“I wanted you to be in their place, too.”
They had to end their unique conversation as they reached the busy beach. They found an unoccupied spot, put down a couple of towels, and stretched out in the sun. It was a little island of normalcy in a sea of insanity.
“Oh my God, you guys aren’t hiding?”
Gwen and Joey looked up to see Rachel standing by their heads upside-down. Their little break had abruptly ended, and it looked like it was back to the asylum.
Joey sat up and turned around. “What else were we supposed to do?”
Gwen sat up and joined him, “Yeah, I mean ... I can’t hide forever, like they literally won’t let me.”
Rachel stared at them in disbelief. “No one ever goes out the first day, like never!”
Gwen stood up, brushing sand off her legs and bikini-covered ass. “Guess I should get ready then. Do I need to find a private place or are they bold enough to do it right here?”
Rachel shook her head, “They wouldn’t do it here. The locals know and ... tolerate it, mostly. But the tourists raise a stink, which is bad for everyone. They’d take you somewhere else. If it’s quick, the woods off the path; if it’s a long day thing ... the pond I’ve shown you. But you don’t have to worry about that now.”
Joey was confused, “Why not?”
“Because they aren’t here. They took off to get more beer and drugs out of town. They don’t wait around the first day. Everyone stays home ... except you two, I guess.”
“Then why are you out and about?” Gwen asked suspiciously.
Rachel laughed, “Funny enough, to find you guys. I was heading to your place to find you and noticed you here. Wanna go somewhere private so we can all talk?”
“Yeah right! This definitely feels like a trap,” said Joey.
Rachel looked at the ground, “I understand why you wouldn’t trust me, but it’s true. Honest. They’ll be gone for most of the day on a beer run. They know a guy, but he’s a few towns over ... it’s a whole thing.”
Gwen squinted her eyes at Rachel, trying to figure things out. She didn’t know her very well, although a little too well at the same time.
“I believe her,” Gwen said. “They wouldn’t need her to get me if they were around, would they?”
Joey nodded, “I guess not. Where to then?”
“Pond?” Rachel suggested. “I know, I know, I said that’s where they’d take you, but it’s safe. Plus, fewer people around.”
Joey grumbled, “Fine. If this is another lie ... I swear...”
Rachel nodded, “If it is, you’re free to do whatever you want to me. I mean, you already can, but ... yeah, I wouldn’t blame you.”
“Let’s go.”
They made their way to the hidden pond, Joey and Gwen’s heads were on swivels the whole time. Joey expected to find Todd, Cas, and Renny waiting for Gwen with their cocks out ready to fuck the hell out of her again. When they reached the clearing though, there was no one else there.
Rachel smiled, “See? Told you.”
The three of them sat under the shadow of the trees at the edge of the meadow. Gwen stripped off her shorts and Rachel stripped down to a fairly conservative bathing suit, at least compared to the one Joey met her wearing originally. It was closer in style to Gwen’s, only green and slightly more revealing. There was some uncomfortable silence at first, with the Tanners still expecting an unpleasant surprise at any moment.
“Relax. I told you, they’re gone for now,” said Rachel as she leaned back on her hands. “They’ve already got you. There’s no reason to lie to you now.”
“Ok, we’ll see. What did you want to talk to us about?” Gwen asked tentatively, letting her guard down.
“First off, how are you both doing? I’m sure last night was a lot to deal with.” Rachel looked at Joey,
“ ... it seemed that way for both of you.”
“It wasn’t exactly a picnic,” snapped Gwen. “I was still leaking cum in the shower today.”
“You’ll have easy days and worse days, believe me. As Renny said last night, they were going easy on you. They kept it to one each, except for that facial bit at the end, but you didn’t have to do anything for that. Just take it and wash off after,” she said dismissively. “You did good though. They were actually impressed after.”
“What do you mean, is that good or bad?” asked Gwen.
“I don’t know. It doesn’t mean they’ll take it easy, just they liked fucking you and you mostly obeyed. Most girls freak out the first time. You managed to hold it together. It almost looked like you enjoyed it for a minute or two.” Rachel looked at her with a cocked eyebrow.
“I didn’t. I can’t control what my body does or doesn’t do. Did some of it feel good? Yes. Would I want to keep being their fuck-toy? No. I’d rather decide who I allow inside me, myself, rather than be forced.”
“Unfortunately, you don’t have that choice right now, and neither do I,” replied Rachel. “If Joey wanted, he could fuck either one of us right now ... if he wanted.”
Joey shook his head, “Not right now, thanks.”
Rachel shrugged, “Ok, now you have an idea of what things might be like for the rest of the summer, at least in that setting. As you know, they can find you most anywhere, and make you do shit then. First piece of advice; wear skirts, not shorts; easy access so you don’t have to take everything off when they bend you against a tree.”
“Does that happen a lot?” Joey asked.
“Gwen should expect to have sex every day she goes out. It might not actually happen, but she should expect it and be prepared. Have a small bag with supplies like a small towel, breath mints, sanitizer, maybe an extra pair of underwear, pads, and a bottle of lube.”
“Holy, I have to carry that much? Why?” Gwen expected a few little things, not a whole medicine cabinet.
“Some are obvious,” Rachel explained, “but others ... pads are good when a bunch of them cum in you like yesterday. It keeps it from oozing out everywhere. Underwear in case yours get ripped, torn, shredded, or just wrecked in some way. And lube, well, you’ll definitely want to keep that on you when they start on your ass.”
Gwen was shocked, “They’re going to do that just anywhere?”
“Yup,” nodded Rachel. “If you don’t have a bottle with you when they want it, you’ll get a spit job which doesn’t do much. It’ll still hurt like hell, trust me. That one’s important.”
Gwen leaned forward, “What’s it like? Does it hurt a lot?”
“What, anal? Yeah, it hurts ... especially at first. I’m used to it now, so only the first few seconds suck. Mostly because they’re jerks, but you get used to it. I’d suggest stretching yourself in the shower over the next few days; it’ll help,” explained Rachel.
“Anything else I should know?” asked Gwen.
“Be ready for anything. Last year a girl had a breakdown when Todd showed up with ten other guys to one of his ‘so called’ parties. They ran a train on her while she bawled her eyes out.” Rachel looked away.
Gwen got upset, “I have to have sex with even more people? Not just those jerks?
“Anyone they want to give you to. Guys, girls, random men ... they don’t really care. The most important thing to remember is this. They only care about three things: getting off, getting leverage, and humiliating you. Anything they do is to satisfy at least one of those three things.”
That attitude and way of thinking confused both the siblings. “Why do they want to humiliate her?” Joey asked.
Rachel paused to think, “Think of Gwen like a mouse cornered by a cat. They’re just playing with you ... enjoying your suffering. I’d recommend not showing any more signs of weakness. I know that sounds hard, but if they do something you didn’t expect, try not to react. They already know you’re terrified of anal and didn’t like me sitting on your face. You’ll get both of those things eventually.”
“I knew one of those things already,” replied Gwen.
“So, you better accept you’ll be eating pussy soon, too, ‘cause that’s happening no matter what. Even if they get someone else later in the summer, you’ll still have to be there during their parties. You’ll be on pussy cleaning duty with me.”
“I don’t like the sound of that,” Gwen grumbled.
Rachel smiled, “I don’t know, you were pretty good at it. I can strip down right now if you want to practice.”
Gwen glared at her, “I’ll pass.”
“Jeez, for two people out and about after a fuckfest, you sure don’t want to have fun.”
“For someone who swears they hate being a sex-toy, you sure seem like you want to be part of it,” said Gwen accusingly.
Rachel looked her dead in the eye, “This is the one time I do want it because I get to have a choice. When they’re triple-teaming you, tying you up somewhere for strangers to find, or just pissing on that pretty face of yours, you’ll take any crumb of bodily choice you can get.”
“Wait, did you just say-” Gwen was startled.
“Yes. They’ve done all those things to me. Since you’re here for the summer, you’ll probably do those things, too. The short-term girls, the one or two weekers’, they just get fucked a lot. You’re going to be tormented worse than anything that happened last night.”
“I- don, I don’t want to do those things. How can I stop them from doing that?” Gwen suddenly got really worried.
Rachel realized she’d completely freaked the girl out and went too far. She knew she had to dial it back. “It isn’t guaranteed ... maybe- maybe don’t give them a reason to punish you. Just smile, say yes, and enjoy, or at least pretend to enjoy what they’re doing ... especially with Todd. Again, they liked you, so use that as much as possible.”
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