Sarah's Discoveries
Copyright© 2026 by DangerMouse
Chapter 2: Rationalization
Incest Sex Story: Chapter 2: Rationalization - 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
Rob and David’s eyes were bulging in utter disbelief. There was a pregnant pause that seemed to last forever, though it couldn’t have been more than a few seconds. David felt that he should be doing something, but he wasn’t sure what. He had just witnessed his fifteen-year-old little sister explode in orgasm in his parents’ family room while watching him have sex on the big-screen TV. This was way out of his realm of experience.
Rob, a little further removed from the situation, had moved past the stages of shock and progressed to the stage of enjoying his view. His eyes were roaming across Sarah’s splayed thighs, her sex and what he could see of her cute rear ... Her juices were slowly seeping out past her still-embedded fingers. He could see her stomach, rising and sinking quickly as she was trying to catch her breath. The towel obscured her breasts, still tied across her chest. Rob couldn’t help but hope he’d have a chance to get a better look later. Sarah slowly raised her head and for the first time noticed she had an audience.
Her eyes popped wide open when she realized what had just happened and how she was situated. She extracted her fingers with a soft “squish.”
“Eeeeeeek!!!” she exclaimed and scrambled to sit up and cover herself. At the same time, David got his voice back.
“Wha ... what the hell were you doing!?” he exclaimed, flustered. Sarah stared at him with big eyes. She was totally confused, still getting over her first real and totally amazing orgasm. Her vision was still a little blurry. She shook her head.
“I think that’s pretty obvious, Dave,” Rob quipped. “At least give the poor girl a chance to recover.” David stared at him, unsure how to react.
Rob turned to the TV. “Turn around so she can compose herself,” he suggested to David who was still dumbstruck. “It would be the gentlemanly thing to do, anyway.”
David slowly turned, then remembered the TV. He scrambled for the remote and hit stop. Not that the damage wasn’t done already. He wasn’t sure if he’d be able to turn and face his little sister again. What would she think of him? Would she speak to him again? Would she tell their parents? He heard the pit-pat of naked feet on the hardwood floor as Sarah nervously approached the couch.
“I’m ... I’m...” she began to stutter. David turned around, knowing what he had to do.
“I’m...” David started, and then they both managed to get it out at the same time. “I’m sorry,” they both exploded and then stared at each other. David spoke first.
“No, you have no reason to be.” He shifted uncomfortably. “We shouldn’t have been watching this where you could see it. This must be so embarrassing to you.” David lowered his head. “I’m sorry”
Sarah looked at him before replying, “No, I am the one who should be sorry.” She made sure her towel was wrapped tightly. “I shouldn’t have spied on you guys.” Her face was beet red. She turned and started running for the stairs. “I’m sorry!”
“Stop!” Rob’s voice rang out before she made it out of the room. She froze and turned around. Rob looked unsure of himself, not sure what to say next. “You guys can’t leave it like this,” he continued, genuine concern on his face.
“About the cheesiest line ever,” Rob groaned inwardly. He wasn’t any good at mending relationships; especially family relationships. But, he had spent a lot of time with this family, and was quite fond of all of them, including David and Sarah. “You guys are the closest siblings I’ve ever seen, and if you leave it like this nothing good will come of it.” He looked back and forth at the two of them. “I think you better talk about this ... that’s my opinion anyway.” He shrugged and dropped back into the couch, his bit said and hoping that he didn’t just make a total ass of himself.
Sarah and David looked at each other for several seconds, hazel and blue, unblinking. Sarah’s face set and then she determinedly walked back, around the couch and sat down between David and Rob, making sure the towel was secure. She looked tiny between the two tall football players.
“Ok,” she said. “Maybe Rob is right.” She was still flushed, largely out of embarrassment but not entirely. “Maybe we should talk.” Sarah looked at her brother. “You first.”
David was caught off guard. “Me first?” He thought he saw a flicker of satisfaction on Sarah’s face for having passed him the hot potato. He supposed it was good that some things were still as they had been before trying to formulate his defense. “Um...” Not a good start.
Meanwhile, Rob’s mind was somewhere else. Sarah was concentrating on David and was oblivious to him, which his roaming eyes took full advantage of.
“Some close family friend, huh?” he thought. “Just a lecher like the rest.”
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