Sarah's Discoveries
Copyright© 2026 by DangerMouse
Chapter 5: Foursome
Incest Sex Story: Chapter 5: Foursome - Sarah (and then one of Sarah's friends) are introduced to a variety of pleasures by Sarah's older brother and one of his friends. It was originally split into four "books" but I have combined them here. This is one of my favorite stories that I got from the early internet (probably even before the web existed in the wild). I couldn't find it online when I looked so I thought I would share it here for others to enjoy. If this is your story, please let me know and I can take it down.
Caution: This Incest Sex Story contains strong sexual content, including Ma/ft ft/ft Consensual Drunk/Drugged Lesbian Heterosexual Vignettes Incest Brother Sister Light Bond Group Sex Anal Sex Double Penetration Exhibitionism First Masturbation Oral Sex Voyeurism Public Sex
David and Rob made no effort to hide their entry into the house, but as soon as they were in they could clearly hear the raw sounds of sex from the family room. Rob lifted his finger to his pursed lips, telling David to be quiet.
“She must be watching the tape again,” he whispered. “She’s probably already ready for us.”
David nodded, already hardening in his Levi’s.
Rob grinned mischievously. “Let’s give her a surprise.” He started to remove his clothes. David quickly followed suit, and soon two tall, naked and fiercely erect men were sneaking stealthily across the family room toward the back of the couch. A scene involving the two black girls and four sweaty guys poking and prodding in various improbable positions was playing on the big-screen. As the guys peeked over the edge, however, Sarah wasn’t the one to be surprised. In fact, Sarah didn’t even notice the two were there, nor did Mari beneath her.
The guys looked at each other incredulously. David had immediately recognized the exotic girl as Sarah’s classmate and was stunned. Rob’s mouth was just hanging wide open. Long seconds passed while the sexy little girls carried on, oblivious to their surroundings. As Sarah moaned throatily, the two guys slipped quietly back to reassess the new and unexpected situation. The playing field had changed unexpectedly and they seemed to be at a loss. Rob stared questioningly at David who, in turn, could only shrug. Passionate moans and delighted squeals sounded from the couch.
After much consideration, the two guys couldn’t help themselves and began to inch over toward the couch once more in curiosity, their feet sliding silently on the hardwood floor. They peeked carefully over the worn back, wondering what to do next.
On the other side, Mari was busy working her wet-with-saliva index finger into Sarah’s firm ass when she noticed the movement out of the corner of her eye. She craned her head to peek past her friend’s behind and gasped.
“Oh my god!”
The shocked outburst made Sarah sit up. Quickly. “What’s going on!?” She jumped when she spotted the large intruders, and crossed her arms across her bouncing breasts. David and Rob jumped back in a hurry and blushed sheepishly. Their members had wilted in distraction and surprise, and they looked anything but fierce. Once Sarah recognized them, she fixed them with a stern glare and tried very hard to look angry. She was finding it hard to suppress a giggle.
“You guys are spying on us!?” The two guys shrank back like animals from flame, not sure how to interpret the situation. What would normally be a very awkward situation was somewhat clouded by vivid memories of last night and the imagined potential of an additional naked teenager.
Just then, Sarah was distracted by muffled speech and some fierce wiggling beneath her. When she had sat up, she had covered Mari’s head quite completely, grinding her dripping pussy into her friend’s mouth and cutting off a large part of the available air supply. She lifted herself slightly so Mari could escape.
“Jesus, you nearly killed me!” Mari was gasping for air and laughing at the same time, the guys temporarily forgotten. They, in turn, marveled at the perkiness of her pert breasts as they bounced above the back of the couch.
“It was out of love,” replied Sarah with an air of dignity.
“Remind me to watch out for your pillowy thighs next time you want to show me your love.” Mari grinned.
“I do NOT have pillowy thighs!!”
“It was either that or your pillowy ass. I dunno.”
Sarah reached out and tweaked a nipple. It reddened noticeably.
“Ow!”
Mari tackled Sarah forcefully into the couch, her fingers digging into the little blonde’s sides. In no time, Sarah was reduced to twitching and laughing hysterically. Meanwhile, the guys just looked at each other in confused wonder when the wrestling girls disappeared behind the couch-back. As the battle dragged on, they eventually figured they might have a chance to make their escape and started sneaking out quietly. Almost at the door were they when a stern voice called from the old couch.
“Don’t move!” They froze.
Glancing back over their broad shoulders they saw two impish little faces peeking up over the back of the couch, grinning mischievously.
“You guys walked in on something really private,” Sarah began. “We’re not just going to let you guys just get away with it.” The guys turned slowly and awaited their sentence. Their members had begun to twitch slightly in anticipation.
“Hmmm.” Sarah thoughtfully stroked her chin between her thumb and index finger. She leaned over to her slim friend and whispered something quietly into her ear. The dark-haired girl’s face was thoughtful before she slowly whispered something back. On the secret exchanges went before the two teenagers looked squarely at each other, smiled evilly and then turned to face the expectant guys once again.
“Ok, we’re ready,” declared Sarah. Mari giggled.
“Which one do you want first?”
Mari pondered Sarah’s question as she brazenly looked the guys up and down, like they were on display at a store counter. “I dunno ... pretty puny, the both of them, if you ask me.” Both girls laughed. Both guys flushed deep red.
“Hrm” Sarah cleared her throat while trying to remain serious. “Best I can do on short notice.”
“Hmmm...”
David and Rob were unsure whether they should be laughing or insulted.
“Maybe if they looked a little more interested?” suggested Sarah.
Mari nodded. “Maybe...”
“Ok, guys! What are you waiting for?” Sarah quickly took to her position in control. “Let’s see you guys look interested, at the very least!”
David and Rob looked at each other, shrugged and then started stroking themselves, attempting to resuscitate their flaccid members. Both of the girls had sat up so they were resting their elbows on the back of the couch, affording the guys enticing glimpses of their perky breasts. Despite the embarrassing position, it didn’t take long before the guys were once again good and erect.
“We’ve created a monster,” Rob noted to David
“Seems it.”
The girls were enjoying the show, getting hornier and hornier. They were rubbing their sides against each other, dying for more intimate contact but not wanting to lose their control over the guys.
“How about now then,” Sarah asked the dark-eyed girl.
“Well...” Mari looked like she was thinking hard. “How about the skinny one,” she said and pointed at Rob.
“Sounds good.” Sarah made a little ‘come hither’ motion with her finger to Rob, who quickly walked up to the couch. Once he was close enough, Sarah put her hands on his hips and pulled him toward her. She gently grabbed his hands and put them at his side, indicating clearly that he wasn’t to move them.
“Have you ever touched one?” Sarah looked questioningly at Mari. Her friend shook her head, her long hair waving back and forth. With Rob up close, she examined his member closely, intrigued but afraid to touch. She could see it pulse in time with his heartbeat. Impatient to get things going, Sarah grabbed Mari’s hand with her own hand around it and wrapped their fingers around his member. She guided her friend through a couple of strokes on it before letting go. The dark-haired girl didn’t stop when her hand was released.
“Feels neat, doesn’t it?” Mari only nodded, transfixed.
The blonde girl got on her knees behind her friend and embraced her, pressing her breasts and stomach into Mari’s back. Her hands were on the other girl’s breasts and her fingertips were teasing the nipples. She leaned in closer to nibble the olive-skinned girl’s neck and ear while breathing heavily.
“Put it in your mouth,” she whispered throatily, applying pressure on Mari’s back.
The girl leaned forward, leaning one arm on the back of the couch, until she was almost touching the large cock with her nose. She waved it around gently before finally daring to stick her tongue out and lick the moist tip. She was immediately rewarded with a groan from Rob. He began to push himself lightly toward her mouth, the head bumping softly against her closed lips. Finally, she let them part and he slid in slowly until she stopped him with her hand against his stomach.
As Rob carefully pumped himself in and out of Mari’s wet mouth, the diminutive girl was learning to reciprocate. She bobbed her head back and forth on his cock as Sarah whispered encouragement and suggestions into her ears.
The little blonde was running her hands across the dark-haired girl’s soft breasts and firm stomach. When her right hand brushed against the light fleece of the other girl’s pubic hair, she reached down to probe with her thin fingers. Mari spread her knees a bit to give her friend better access and Sarah quickly took advantage, running fingertips over her erect clit and between her soft, wet lips. Mari moaned around Rob’s engorged cock.
Meanwhile, David was getting awfully tired of being the odd man out. He had been just stroking himself and watching since the little girls had called Rob over, and if he didn’t get into the action soon, he was sure he would blow all over the floor. So he snuck around the couch and the oblivious threesome until he was standing behind Sarah. When he reached out and touched her firm ass with his large hands, she immediately pushed it backwards to afford easier access. He slipped his strong fingers down into the cleft between her pale cheeks until they reached her soaked pussy and prodded. Slowly, as he pushed in two fingers, her cunt clenched tightly around them. Her muscles were throbbing in time with her pulse.
Rob was nearing the point of no return, watching himself slide in and out of Mari’s soft mouth. Her lips were tight around his girth and he could feel the vibrations caused by her moans as her wet sex was manipulated by her blonde friend’s dexterous fingers. Sarah’s head was nestled against Mari’s neck, and her face wore an expression of bliss as David’s skilled fingers were slipping in and out of her.
Soon Rob felt his balls tighten and his semen begin boil up his shaft. He quickly grabbed himself at the base and pulled out of Mari’s mouth, to her surprise and confusion. The two girls’ heads were right beside each other as Rob aimed and fired. The first pulse rushed out to splash against the darker girl’s face, drawing a line across her cheek and lips. Mari instinctively pulled back but didn’t get very far with her friend behind her. She watched in awe, her mouth open, as he directed the second blast at the blonde girl, which hit her square on the forehead and the bridge of her nose. Sarah’s eyes popped open in surprise at the sudden impact, but her face broke into a grin as she watched Rob shoot another stream in Mari’s direction. It splashed against her lower lip and tongue. Her mouth snapped shut and she swallowed, mostly in surprise. A weaker stream landed on Sarah’s cheek, before Rob guided a final one to dribble onto Mari’s left breast.
Sarah let out an excited laugh before grabbing the head of her still surprised friend to pull her in for a kiss. She could taste Rob’s come on Mari’s lips. As they parted, she grabbed the cock that was still waving in their faces, gave it a squeeze before licking off the last drops that oozed out. When she looked back at her friend, Mari had scooped some of the semen from her cheek onto her finger and was examining it. Sarah darted her head out and enveloped her friend’s finger in her mouth and sucked it clean while looking into her eyes.
“What did you think?” Sarah asked.
“Um ... I’ve never experienced anything like it.”
“But did you like it?”
Mari grabbed Sarah’s head, craned her neck and licked some of the come from her friend’s chin.
“I am so fucking horny,” she said slowly and deliberately. “What do you think?” Sarah just smiled.
However, her pleased expression turned into one of surprise as the little blonde found herself pulled backwards and to the left by her hips such that she had to put her hands down to steady herself. Positioned on all fours on the soft couch, she found herself eyelevel with Mari’s belly button. She felt the couch sink behind her as David climbed on.
“That’s it,” he said. “I need to stick my cock somewhere ... this is just too much for me!”
He immediately buried himself to the hilt in Sarah’s tight pussy, her juices oozing out past his balls. The young girl and the strong man groaned in unison as they melded, overwhelmed by sensations. Sarah’s blue eyes were shut tightly and her fingers were clutching the soft cushions beneath her as her brother began to pump vigorously into her. The sound of flesh smacking against flesh filled the room, and the little girl’s body was vibrating with pleasure.
Mari was staring wide-eyed. “God, that is so sexy!” She was squatting on the couch and her fingers were busy between her legs.
Rob grinned. “You should watch up close. There’s nothing quite like it.” The entranced girl looked at him.
“Slide underneath, you mean?”
“Yeah.”
Mari bit her lower lip before lying down on the couch in the opposite direction of Sarah, her head right underneath her friend’s. The blonde girl was oblivious, lost in her own world as David pounded his large cock into her. Her breath was ragged, and she was beginning to whine quietly as her orgasm neared. Mari hurried and scooted her lithe body across the couch underneath her ecstatic friend. She giggled softly as she watched Sarah’s full breasts bounce back and forth with each thrust as she passed below.
Finally she was underneath, her head straddled by both Sarah’s and David’s legs. From her vantage point, she could examine every detail. The clench of his ass as he pressed forward, the increased flow of the blonde’s sweet juices as the large member displaced them, and the quivering of their thighs as his strong hips impacted against her firm behind. As he hit, Sarah would rock forward just a bit before pushing herself back onto him, the muscles in her thighs and stomach flexing. David’s balls would swing forward before he pulled out, the short girl’s pussy lips clinging tightly to his wet cock. Before he pressed back in to repeat the motion, he would be so far out that Mari could see the ridge of the head of his member.
The little half-Asian spread her legs and plunged her long fingers into her cunt, which was dripping on the cushion beneath her. As she watched the couple above her she tried to keep the same timing, thrusting when David was and wishing it were her on the receiving end. With each stroke, some of Sarah’s juices would drip gently on Mari’s face and neck, adding to her arousal. She was so absorbed in the fucking above that she was caught completely unawares when Rob stuck his long tongue into the cleft of her pussy, next to her working fingers.
Mari jumped, at least as much as one can jump while lying on one’s back. She sighed in pleasure as Rob gently pulled her fingers out and replaced them with his tongue. Shocks of excitement were shooting through her as he manipulated her cunt, vulva and clit with expert precision.
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