His Sister's Keeper
Copyright© 2026 by ghostwritten after dark
Chapter 4
Incest Sex Story: Chapter 4 - 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 groggy and his arm asleep. He looked at the time on the nearby alarm clock. It was just after 10:30 in the morning. Turning his attention to his dead arm, he found it wedged under a pillow that held the sleeping head of his beloved little sister. The night’s activities ran through his mind as he lay there thinking about how he slept with a girl for the first time. Sure, it was his sister, but it did feel nice to wake up next to someone he loved.
He watched her sleep. She looked so peaceful. Her face pressed into the pillow, and her hand rested on his chest. He should wake her; they weren’t supposed to fall asleep, but he also knew what lay ahead. Today was July 1st. His sweet sister was going to be ravaged tonight by three assholes, and there wasn’t a damned thing he could do about it.
Let her sleep, he thought to himself. He had to hope their parents would be gone by the time she woke up. They tended to take off during the day to explore the area anyway, so he just had to wait and see. Joey carefully pulled the sheets up over his sister’s exposed shoulder.
Gwen slowly woke up about a half-hour later. Her hazel eyes opened slowly to the new day. She looked up and softly smiled at the man she shared a bed with. She felt warm and safe, despite knowing she was completely naked under the sheets.
“Good morning,” she said, wiping her eyes.
Joey took the opportunity to reclaim his arm, which dangled limply until the feeling returned. With his working hand, he brushed hair from his sister’s face.
“Mornin’, sleepyhead. How are you feeling?”
“Good.” She extended her arms and legs, stretching herself out to help herself wake up. “I really needed a good sleep.”
Joey snorted slightly, “I’m happy it helped.”
“It helped with a lot of things, Joey.” Gwen didn’t want to talk about what was to come. She was still worried about it. But she was happy to have one good, positive experience to remember beforehand. She could hold onto the knowledge that sex could be warm and wonderful with someone she actually cared about.
Joey ran his fingers through Gwen’s hair. “Mom and Dad left about ten minutes ago if you want to take a shower.”
“Not yet. I’m not ready to start this day. I wish I could just stay in bed all day.” Gwen draped her arm over Joey’s stomach and rested her head on his shoulder. She let her fingers twirl a few hairs from his chest, her index finger then released it, before doing it again.
“Are you sure you’re OK, Gwen,” he asked. He placed his arm, now feeling prickly as it woke up, above his sister’s head.
“Yeah, just hold me right now. That’s all I want.”
They stayed like that till noon. Eventually, though, the pull of hunger and the need to use the washroom roused them from their tranquility. With one last warm hug, they pulled down the bedsheets and climbed out of bed. Joey noticed the large white stain on the sheets, a reminder of their illicit affair.
While putting on some pants, he couldn’t help but glance at his naked sister’s body. She was bent over, picking up her discarded underwear he had tossed the night before. He caught a glimpse of her hair-lined sex. It was matted and clumped with white, drying jizz that had leaked from her overnight. When she stood up, her head turned and he was caught looking. She just smiled at him, put on her overly large T-shirt and left his room. Joey stood there, pants in his hand, and sporting a hard on.
Gwen used the washroom first, feeling the sweet relief from a night’s pee build up. When she went to wipe, she felt the dried cum her brother had put in her. It should have been a terrifying thought, knowing she could get pregnant, but it was a future concern. She knew it was too late for long term birth control. A morning after pill would work for one-off accidents; but that wasn’t what was in store for her. She would deal with the results of this summer when it was over, whatever that might be. She flushed the toilet, washed her hands, and headed to the kitchen for food.
Joey eventually joined her in the kitchen, and the two of them scavenged for lunch. Not feeling like cooking anything, they settled on sandwiches and some granola bars. They sat and ate, both wearing what they wore to bed. They knew they’d get dressed later.
“What do you want to do today before...” Joey’s words trailed off, not wanting to bring up the unpleasantness ahead.
Gwen looked at him, “Not too sure. We could go out on the lake in the canoe. Paddle around.”
“Yeah, that sounds like fun.”
There was a silent pause between the two siblings. They hadn’t really discussed what happened last night or what was going to happen this evening. They both tried to act like everything was normal, but things were anything from normal.
“Do you wanna take a shower first?” her brother asked.
“No, you should go first,” Gwen replied. “I take longer and I’m still a bit hungry.”
“Ok, then we’ll have a bit of fun.”
Gwen turned and winked, “I think we already had that.”
“Uh ... yeah.” Joey turned and walked into the bathroom and shut the door. As he reached behind the curtain to turn on the water, he felt conflicted about what had happened.
It wasn’t like he’d forced himself on her; she asked him to do it. But it was still his little sister. He loved her more than anything and given the circumstances, he’d do anything for her. As he stepped into the shower and looked down at his dick, he could still feel a slight residue of their lovemaking on it. Did the fact that they did that mean they’ll do it again? They were told by Rachel that Todd and his crew would make them ... but what about away from that? Had their whole relationship changed overnight? He knew he needed to talk to her, they needed to figure all this out, but he didn’t think today was the best day. It was already going to be hell tonight, why ruin the nice thoughts of before.
He felt more certain about it as he rinsed the shampoo from his hair. He’d talk to her about it tomorrow or maybe the day after, and give her time to deal with what’s happening. He was still worried about tonight though, and wasn’t sure if he could stomach what those guys might do to Gwen. His mind flashed with images of his sweet sister on her hands and knees, Todd pounding her from behind, or riding Renny. It disgusted him but made his cock hard. Lost in his own mind, he instinctively started jerking off thinking about his sister.
“Whatcha doing?” Gwen said, pulling open the shower curtain making him jump and cover himself. He didn’t realize she was standing there naked. “Make some space, Joey.”
Gwen stepped into the tub and pulled the curtain closed behind her. Her brother stood frozen, his dick still in his hand. She put her head under the water to get it wet, then turned to her spooked brother. “What is it?”
“Gwen, why are you in here?” he asked, finally letting go of his still hard cock.
“I’m taking a shower, what’s it look like? Look, we’re going to be doing and seeing a lot of uncomfortable things over the next several weeks. We should just get used to it now,” she said bluntly.
“But I thought you might need some time...”
Gwen put her hand on his arm. “Joey, I don’t have time. What I do have is you.”
Joey was perplexed, “I don’t understand.”
“I’ve been driving myself crazy the past few days trying to find an escape. We can’t stop it, Joey; there’s no way out. After we ... last night, I realized the best thing I could do was hold onto you. You’re going to be my safe space, Joey.”
Her hand moved down his arm to his leg and then gripped his erect penis. Joey was about to say something, but Gwen silently told him no with a shake of her head. He listened.
She continued, “Our relationship has already changed forever, there’s no point in denying it. When we get back to the real world, maybe we can try to forget; but here and now, it’s just us, ok? For these next few weeks, I need you to remind me of love and tenderness like last night. They’re going to fuck and rape me and do who knows what else; you’re going to love me and hold me tight. I need you to do that to keep me going. Can you do that?”
The water dripping off his head masked the tears that ran down his face. It was the sweetest and saddest thing he’d ever heard. She was trying to stay strong and hold onto him, but she wouldn’t be in this mess if it wasn’t for him. The guilt was hard to push down, but he had to for her sake. He nodded.
“Good.” She then leaned forward and kissed him. He kissed her back. Gwen’s hand remained on his cock, stroking it slowly. When the kiss ended, she said, “If things were different tonight, I’d let you take me in the shower but...” she dropped down to her knees, “ ... I think I’ll practice this instead.”
“Gwen, you don’t have to.”
His sister looked up at him scoldingly, “What did I just say? I want to get better at this, for you.”
Joey watched his cock disappear in his sister’s mouth. Water rained down on them as she bobbed her head back and forth on his rod. As she moved, he could see her tits jiggling on her chest and a small shadow of her pubic hair below that. She looked up at him, her hazel eyes sparkling with no anger or hatred because of their situation, but with love. He loved her too. It didn’t take long for him to burst, filling her mouth with cum. This time, she was ready and swallowed most of it. A few of the gobs that dripped from her lips were washed clean by the shower.
They spent the afternoon paddling around the lake in the canoe, getting the hang of the thing. When their parents came home, they were happy to see their kids getting along again. Time flew by quickly, as dinner was served and soon it was time to get ready to go. They told their parents they were meeting some friends they’d made and would likely be back late. Their Mom and Dad thought it would be fine since they were both together.
“I’m surprised you wore that,” Joey said as the two walked along the beach towards the path. Gwen had chosen to wear a ratty-looking T-shirt and shorts that had paint stains on them from when they painted her room.
“I’m stuck doing what they want. Like hell I’m going to dress up for them, too,” she said defiantly. “Besides, I don’t want to potentially ruin any nice clothes.”
Joey wished he’d have thought of that. He’d chosen to wear one of his favorite shirts, a grey and black polo shirt, and a pair of blue jeans. It was warm out, but not unbearably so as they walked past the few beachgoers still relaxing as the sun slowly went down. They walked along the dirt path and through the parking lot. As they neared the street, though, Gwen grabbed her brother’s hand and held on; her grip tightened with each step.
“You, ok?” he asked as the house came into view.
“Yes ... no. Honestly Joey, I’m scared. I’ve tried to put on a brave face and deal ... but I’m terrified.” She was on the verge of tears. Joey quickly wrapped his arms around her. He would be her rock that she needed.
“I’m right here, ok? I’ll be with you the whole time. Just remember last night and focus on that...” he wiped a tear that leaked from her eye. She gave a half-hearted smile and nodded.
“Thank you.” It was all she could or needed to say. They walked up, hand in hand, and rang the doorbell. Cas answered.
“Looks like the party’s arrived. Was starting to think you’d chicken out. We were trying to figure out if your parents or your friends should be the first ones we messaged,” he taunted.
Joey stepped inside, pushing past Cas, Gwen quivering in tow. “Yeah, we’re here. You sick fucks.”
“Temper temper, Joe,” Todd coldly said, appearing in a doorway. “Don’t worry, you won’t get left out.”
Cas laughed as he shut the door, “Yeah man. Relax. If you want, you can fuck that slut” he pointed to Rachel. “She’s got a cunt like the Grand Canyon, but you’re welcome to it. Right Rachel?”
Rachel was standing next to Todd. She was completely naked and her face was sullen. “Yes, whatever you want. I am my brother’s whore.”
Todd gave Joey a tap on the arm with his fist. “You’ve gotta learn to train them, Joe. Show them strength. Show them who’s boss and they’ll fall into line.”
“Let’s quit the chatting and get to the fucking!” Renny said from the stairs. “I wanna see what this little cunt can do.”
Their cruel words only heightened Gwen’s fears of what was going to happen. She clutched her brother’s hand tighter, unsure if the wait and uncertainty were going to be worse than the actual event. She wanted to both run away, and to get it over with.
“Now, Renny, we’ve gotta make sure they understand the rules, in case it wasn’t made clear,” Todd said with little emotion as he ran a finger over Gwen’s face. “You belong to us for six weeks. We’re going to screw you, use you, and do whatever we want, whenever we want, and you’re going to let us, understand?”
Gwen, her body shaking couldn’t speak, she only nodded her understanding.
“I didn’t hear that. Bitch. Speak,” Todd commanded.
Her voice quivered, “I-I un- understand.”
“Good. Now you Joe, you’re going to keep her in line at home. Firm hand and all, but don’t worry. We like you so you’ll get your sister, too, and often.” Todd’s face didn’t change.
Gwen called it out, “That’s in case I get pregnant.”
Todd’s voice went lower, “No, it’s for when you get pregnant. Hard to do a DNA test when you’ve got so many different DNAs stuffed inside you. I think Mommy and Daddy would wonder why their son was on the paternity test list for their knocked up little girl ... unless that thing came out with webbed toes or something, then it would be obvious.”
“You’re sick!” Gwen yelled, her hands shaking with fear and anger.
Todd looked stoic, his face not revealing his enjoyment at a fresh piece of meat. He enjoyed the challenge of breaking each girl he came against, like it was a puzzle to be cracked. The torment was half of the fun.
Cas laughed off to the side. “Any other questions before we get started? Please address all complaints to - I don’t give a fuck.”
Joey did have a question, “Where are your parents?”
Rachel answered, “They leave each summer for a vacation. They put Todd in charge because they don’t want to know what he’s up to.”
“Exactly, sis. I’ve got dirt on everyone in this town, ‘cept for you tourists. You come in here and think you own the place. Guess who owns you now,” he said coldly. “If that’s all, let’s get this started. To the living room.”
Todd led them to the living room, with Gwen still holding her brother’s hand, and the rest following closely behind. The room looked different then the last time they were here. The couch was pushed to the side, as was the TV and table. There was now a large mattress dumped in the middle of the floor surrounded by chairs and a large brown ottoman. It was like a small theater to watch their depravity. They even had a bowl of popcorn to eat as they watched, and a cooler was stashed to the side.
“Alright, let’s see. STRIP!” Todd commanded again.
He pointed to the middle of the mattress and Gwen looked at her brother, her rock. Her eyes filled with fear as she let go of his wet and clammy hand. She was visibly shaking, her hands trembling as she reached for the bottom of her shirt. Todd sat down in a chair and beckoned everyone to do so, too. It was abundantly clear to Joey that Todd was the leader of this group. Joey sat down on the ottoman, and he was joined by Rachel, who sat next to him.
Phones came out of pockets, and wicked gleeful laughter erupted when Gwen’s shirt raised enough to reveal her bra-clad breasts. She hadn’t worn a fancy one, uncertain if they were going to tear her clothes off. It was just a simple white bra that supported her decently sized breasts. She could hear the phones taking pictures of her, as she pulled the shirt over her head and tossed it to the couch on the side.
“She’s got some good-sized tits!” Cas yelled out.
Renny hooted and clapped, “Yeah, can’t wait to fuck ‘em.”
Feeling degraded, Gwen fought back the urge to start crying. She could tell these sickos will love it too much. Still though, she couldn’t control her trembling hands, which struggled to undo the button on her paint-covered shorts. She decided to take them off instead of her bra, just because of those jerks’ comments. She couldn’t stop it, but she could resist in little ways. She looked at her brother again for strength, unfastened the button on her shorts, then let them fall to her ankles.
More hooting and snapping of pictures followed. Gwen kicked her shorts in the direction of her shirt and stood there in her underwear. She was at the mercy of three perverted degenerates, a girl who lied to them, and her brother. With nothing left for a delay, Gwen glanced again at Joey, reached behind her back, and undid the clasp of her bra. She felt a sudden release and knew it was undone. For a brief second, she held the garment to her breasts, her last moment of dignity. Closed her eyes, took a breath, then pulled it away ... dropping it on the ground.
The room erupted with cheers and catcalls. Phones snapped more pictures, and she could see the cruel excitement on all of their faces. There was even a trace on Joey’s. Gwen felt like a piece of meat, and the worst was yet to come.
“I think she’s got the best tits yet!” Cas yelled out.
“Oh, fuck yeah. Better than that blonde last summer, Julie or whatever ... flat as a board,” Renny added.
To read the complete story you need to be logged in:
Log In or
Register for a Free account
(Why register?)
* Allows you 3 stories to read in 24 hours.