His Sister's Keeper
Copyright© 2026 by ghostwritten after dark
Chapter 5
Incest Sex Story: Chapter 5 - 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
Gwen’s heart raced in her chest as she watched the three guys gleefully pull their clothes off. Shirts and pants went flying in all directions as she remained locked in place, her body contorted to show off her recently fucked pussy. Her back and legs hurt, but she dared not change positions, fearing what worse outcomes could befall her. She looked helplessly at her brother, holding on to happy thoughts, but fear took hold when she saw all three hard cocks ready to violate her. Her body began trembling again.
Joey sat on the ottoman, his dick still wet from his sister’s mouth, as he watched his dear sister’s hazel eyes fill with fear. It was painful to watch, and they hadn’t even touched her yet. He didn’t know how he was going to sit there and do nothing while these bastards defiled his innocent sister’s body. He turned briefly to Rachel, sitting next to him. She looked at him and gave him a half-hearted smile. They both felt extreme guilt for what they were going to watch.
“Who goes first? Who goes first?!” Renny asked, now standing naked around Gwen.
Cas licked his lips creepily, “Yeah, who gets her while she’s still tight.”
Todd looked at his two buddies, then down at Gwen, shivering nervously on the ground, her legs still folded under her arms.
Snap! Todd snapped his fingers.
“She’s still a mess. Bitch. Clean!” he said authoritatively.
Rachel leaped toward Gwen, dropping onto the mattress in front of her and burying her face in Gwen’s hairy pussy. The frightened girl moaned in surprise as another girl’s tongue invaded her sex for the first time. All Gwen could see was a mass of curly black hair feasting on her pussy. She could feel her tongue lapping and slurping out the cream Joey had just put in her.
Todd watched coldly as his own sister ate another girl’s snatch. He turned to Joey, who watched on with shock. “Don’t want her getting sloppy too quickly. Don’t worry, enough of you’s still in there.”
Joey didn’t know what to say to that. He kept looking back and forth from Rachel’s tongue in Gwen’s pussy up to his sister’s face. She had a look of fear, confusion, and an uncomfortable lust. She was trying to suppress a moan, but Rachel’s tongue felt so good.
Todd knelt beside Gwen, her eye on him in her periphery. “Let it out,” he said calmly. “I know you want to moan like a whore, don’t deny it. My sister’s gotten good at eating pussy ... and you will too.”
Gwen’s face turned red, and her lips quivered. It wasn’t enough. “AAAAaaaaah ... Oooooohhhhh!” Gwen cried out, embarrassed by her own orgasm from the mouth of a girl.
Snap! Todd snapped his fingers again. “Off” was all he said. Rachel retreated to the ottoman, called off like she was a dog. Her face was slick with cum and cunt juice. She didn’t try to wipe it off.
Todd looked down at Gwen, her arms and legs quivering from cumming and from holding the position for so long. He grinned down at her menacingly. She was already good at obeying.
“Down!” he commanded. Gwen let go of her legs, now lying flat on her back. Everything hurt already. She didn’t even care about covering herself up.
Gwen looked up from her back as Todd knelt on one knee next to her. She swallowed hard, frightened of what her next humiliation would be.
“Having fun yet?” he asked in a calm but mocking tone. “Most bitches don’t cum once on their first night, you’ve cum twice ... but you’re not special. You’re going to do what you’re told. You’re going to obey. You’re going to get fucked. Nod if you understand?”
Gwen looked wide-eyed from Todd to her brother and back to Todd. This was it; she knew it. Her lip quivered, her hands trembled, her head nodded. She held in her mind the previous night with Joey; some love existed, and she had to endure.
“Cas. You’re up,” Todd said firmly with a passing look from Gwen to Joey. His lips curled into an ugly grin.
“OooOOOoooOoo!” Cas said gleefully, bounding towards the girl lying supine on her back. Gwen felt a shiver of terror as he leaned down, his face inches from her own. His breath smelt of sour beer as he stared into her eyes.
“We’re gonna have fun with you,” he whispered. Gwen felt two fingers touch her neck and move slowly down her body. It was a surprisingly soft touch as it moved past her clavicle. She was still trembling nervously, the stranger looming over her still inches away. When his fingers touched her left breast, she inhaled sharply. His fingers traced a circle around her nipple, causing it to stand up. His fingers crossed the valley between her mounds and did the same to the other.
She heard a deep breath, his nose just above her head. She could just see his hard cock a foot away. This slow torment freaked her out, as she continued trembling on her back.
“You smell good,” said Cas in an ominous voice. “You’re reaaaal cute, too. Let’s see what your cute face looks like suckin’ on my dick.”
Gwen got to her knees. Occasionally, her eyes flicked over to Joey, forced to watch. She didn’t have much experience with this besides the two times with her brother. She looked at the seven-inch cock that was pointed at her face. It had more veins and an enlarged head. His hands went to the back of her head and pushed it closer. She had no choice; she opened her mouth.
The head passed her lips, tasting terrible. He kept pulling her head onto his meat, inch after inch sunk deeper, more than half. Gwen started to panic. When was he going to stop? Wasn’t four inches enough? She choked and gagged as he tried to force the rest down her throat. She resisted, flailing her arms at his legs, fearing she would choke to death. He didn’t let up and held her head firm. Gwen’s eyes watered, tears ran down her face as she struggled to breathe, and spit erupted from her mouth. Cas let go of her head, and Gwen pulled away coughing, spitting, and spraying thick saliva from her mouth; then bent over and wretched.
Joey was about to run to his sister’s aid, but Todd shot him a look to stay. He obeyed.
“Cas? What did I say about breaking the new toy on the first day?” Todd sounded like a disappointed parent.
“Sorry guys,” Cas said like a scolded dog. No apology was directed to Gwen, who was still coughing at his feet.
“She’ll learn soon, won’t she, sis?” Todd stated coldly before turning to Joey. “My sister’s an expert cocksucker. She’ll teach yours what to do, don’t you worry, Joe. She will be able to deep-throat a footlong by the end of summer.”
Gwen stopped coughing, but her eyes were still watering. She was still bent over in front of Cas, with spit and slobber all over her face and hands. She didn’t know if she could do this. Cas still loomed over her, his cock still steel-hard and ready for more.
“Lie down,” he commanded. With a few more coughs, Gwen obeyed.
He moved between her legs, pulling her knees apart. His eyes devoured her hairy twat, a little cum still clung to a few hairs. Moving into position, he rubbed his saliva covered cock against her snatch. He rubbed it several times against her clit, causing small shocks through her nervous system. Then he placed the tip of his prick at her opening.
He turned to the small crowd watching. Renny and Todd had their phones out. “I’m gonna fuck this bitch,” he said gleefully, before looking at Joey. “Hey Joey! Thanks for this.” Cas shoved himself fully inside.
Gwen hadn’t been ready. She hadn’t expected him to slam himself into her in a split second. She screamed mostly in shock and a bit of pain, finding herself filled again, and so soon. Every muscle in her body tightened in response, which only made it worse Then Cas’ face hovered over hers, a disgusting grin on his face.
“She’s fuckin’ tight, boys,” he called out with glee. Gwen felt spit rain from his mouth as he spoke. “Might be the best pussy we’ve ever had.”
He pulled almost all the way out and slammed back in. Gwen winced, as he banged up against her cervix. He lowered his head and licked her face, tasting the salty remnants of her earlier tears. He slammed back into her again and again. Gwen could only whimper on the ground, her body invaded, yet some of it felt good. She tried to suppress it, looking over at her brother, a look of devastation on his face.
Joey sat helplessly watching Cas’ ass lift and then smash down hard into his sister. When she looked at him, it made the whole thing feel too real. He wanted it to be a dream ... a horrible, horrible dream. Cas’ cruel ’thanks’ had cut him to his core. No matter how they manipulated him, this was all his fault, and he knew it. He struggled once again to return his sister’s gaze. The guilt increased as he found himself aroused watching it.
The initial shock was wearing off for Gwen and her muscles loosened. It didn’t feel as bad anymore. It didn’t feel as good as her ‘first time’ with Joey, but it wasn’t miserable. She shifted her legs, which had been laying flat on the ground, and brought them up, bent at the knees.
“Holy shit, I think she’s liking it,” Cas said with a smile.
“I’m stretching,” Gwen shot back, then realized her mistake in talking back.
“Then let’s really stretch you out,” replied Cas who grabbed both her legs and pushed them wide apart. He continued his hard thrusts into Gwen’s cunt while holding her knees as far open as his wingspan would let him. He dropped his head down onto her chest and licked at her perky tits.
Gwen grunted at the sudden spreading. More embarrassingly, it made things feel even better. She stifled a groan but when he sucked on her tits, it got harder to hide. Her face blushed and she started sweating, her body betraying her.
Gwen’s legs were released and she snapped them back against Cas’ sides. She looked up at him, trying to figure out what was next. A little bit of her was relieved that she hadn’t cum on his cock, but the hedonistic side of her wanted to get off.
He grabbed her legs again, this time hoisting them up onto his shoulders. He folded her in half, like she’d been holding her pussy open, and slammed harder into her.
“I’m gonna pile drive this bitch till I blow!” Cas yelled.
Joey watched nervously, worried for his sister as Cas drilled into her hard. He felt Rachel’s hand touch his for support, much like he’d done for her. Neither one could stop that night’s activities, and they knew it. Joey put his free hand over his lap to hide his erection.
Gwen was fighting herself. The change in angle caused Cas’ cock to hit different spots inside her that felt better than she wanted to admit. It felt like he was pounding into her stomach, and she felt a dizzying feeling of butterflies in the center of her being. When the cockhead crashed into her deepest parts slammed against her cervix ... but it didn’t hurt anymore, it felt good.
She flailed her arms against his back, nails clawed and scrapped, her head thrashed. Her chestnut hair was wet with sweat, and her face was red. Breathing felt as hard as when his cock was stuffed in her mouth.
“I’m gonna bust my nut!” Cas announced, groaning loudly. He pistoned in and out faster. Gwen couldn’t suppress her cries anymore.
“Aaaaaaaahhhhhhhhh!” she let loose a high-pitched scream so drowned out Cas’ grunt. He stabbed his cock into her in hard deep thrusts before lodging himself balls deep and flooding her cervix with its second load of cum for the night.
Spent for the moment, Cas let go of the girl’s legs. They fell off his shoulders and dropped to the ground. He pulled out of her sloppy snatch and placed his stinking cock near Gwen’s mouth. She was still trying to recover, barely able to breath. He pushed it past her lips, fucking her tired mouth till he was satisfied with the cleansing. Gwen curled up into a fetal position on the mattress, thick cum oozing from her battered snatch.
“Fuck, boys, we’ve got a live one here,” Cas said, collapsing on a chair. His back was red with scratches and small cuts. He looked over to Renny, “Careful, cat’s got claws.”
Renny put his phone down and approached the girl curled up on the floor. He was hard and he was ready, having spent too long waiting his turn. He didn’t want to wait anymore.
“Bitch. On your knees,” he said firmly, but Gwen didn’t move.
Joey stood up, “Give her a minute, Jesus!”
Renny was bemused by his outburst, Todd stood back to see how things played out. Rachel reached for Joey’s hand again to try to get him to sit down. She knew from experience that nothing good could come from this.
Renny took a step toward Gwen, “You got a problem, Joe-y?” punctuating his name.
“Just ... give her a break. Have Rachel clean her or something first.” Joey immediately realized his mistake would be taken out on his sister and tried to deescalate the situation.
“Nah, I’m not gonna do that,” Renny said, taking another step towards Gwen. “You keep getting lippy, and you’ll be on cunt duty instead of her.”
Joey felt a light tug on his arm. He let it lead him back to the ottoman next to Rachel. “Don’t,” Rachel said softly.
“You haven’t gotten the message yet, have you, Joey. We own this bitch.” Renny pointed down to Gwen. “We’re actually being nice right now, taking our time. We like to do that on the first night, and this is the thanks we get. You’ll see what happens when the training wheels come off. If we’re hard and there’s an open hole, we’re taking it.”
Hearing what was happening, Gwen rolled onto her back and sat up. “I’m ... I’m ok, Joey. I’m ready to go again. Just needed to catch my breath.”
“Hands and knees. Face your brother.” Renny issued his commands and Gwen diligently obeyed, albeit a little slowly.
Renny continued as he knelt behind Gwen. “You’re gonna have to learn there’s a hierarchy here, and you’re at the bottom. Todd’s the leader, then it’s Cas and I, a layer of shit, and then you at the bottom.”
Joey spoke, “What about the girls? Where do they rank?”
That brought a laugh from the guys. “Bitches don’t rank, just like any animal. They exist for our needs and our needs only,” Renny explained, his hand between his legs. “They’re here to be fucked.”
Renny pushed all the way into Gwen, knocking her forward. She caught herself before being knocked over. She looked up pleadingly at Joey to stop as Renny began to thrust his thick, six-inch dick into her. She felt cum splashing down her thighs as he took her from behind. Even fucking, Renny still wasn’t done egging on Joey.
“Hey Joey, maybe you need a reminder or a preview. Stand up, I see you got a hardon.”
He didn’t know what to do. He first looked at his sister, who nodded. At least it looked like it. Gwen’s body jerked forward every time Renny slammed into her, their bodies clapping together. Joey couldn’t help watch as her tits swayed as she was fucked, too. It only seemed to make his dick harder, making him feel guiltier.
Joey looked over at Todd, who silently nodded his head. Having been given approval, Joey stood up.
“Good boy. Stand in front of your little sister while I fuck her tight cunt,” Renny demanded. Knowing not to step out of line again, Joey obeyed. He looked down past his hard dick to his sister’s face. It was red again, her mouth hanging open as her body was used.
“Early lesson, cunt. Suck his dick while you get railed. You can thank your brother later.”
Gwen looked up at Joey with her beautiful hazel eyes. Her hair was still soaked with sweat, her body now glistening. She took a deep breath and opened wide, taking her brother inside. Gwen struggled to breath, suck, and not scream as every nerve ending in her body felt like it was exploding. She blinked desperately at Joey not to move so she could let the momentum of Renny’s fucks do most of the work. She didn’t want to start choking again.