Sarah's Discoveries
Copyright© 2026 by DangerMouse
Chapter 4: Exploration
Incest Sex Story: Chapter 4: Exploration - 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
Their eyes locked briefly, a silent moment of acquiescence before they leaned in, mouths opening. Their soft lips met and melded until they were one, locked together. Sarah grabbed Mari’s head in her shaking hands, while her friend started to work her dress up. They parted briefly so she could get it up over Sarah’s head before they crushed back into each other. Mari slipped her tongue into Sarah’s mouth and the blonde quickly reciprocated. Their breasts mashed together as they embraced tightly, hands caressing anything they could reach. Eventually, Sarah pulled away gently. “Enough ... I have to breathe...” Her voice was hushed, and she had a full-bodied flush. Mari reached out and gently toyed with her breasts as she was recovering. Smiling, she bent over and placed a little kiss on the end of each of her friend’s upturned nipples, bringing about little shudders. Then she nibbled her way up Sarah’s chest until she was nuzzling into her friend’s neck.
Meanwhile, Sarah would run her hands up and down Mari’s sides and across her behind. She pushed Mari back so she could lower her head to Mari’s nipples. Kissing and nibbling them was a brand new experience to her and certainly a very exciting one. Her fingers drifted around the outside of Mari’s hips until they reached her drenched sex. Soon she was eagerly working her index and ring fingers in and out while Mari humped against them.
“Let me give you a taste of what they did to me last night,” Sarah whispered into Mari’s ear, then pulled her soaked fingers out. Mari looked at her questioningly.
“Why are you stopping?”
“Just wait.” Sarah cleaned off her fingers in her mouth, then leaned in for a kiss. As the two girls shared Mari’s flavor, she repositioned herself at her friend’s side and put her fingers back in. The olive-skinned girl was moaning into the kiss and pushing against the blonde girl’s hand. The other, Sarah inserted into her own sex until she thought the fingers were wet enough.
Mari started when a slimy hand slipped between the cheeks of her ass. An insistent finger began to press against the puckered opening, wet with lubrication. She stiffened up and broke the kiss, her rear unaccustomed to this kind of attention. Sarah looked at her questioningly, while massaging the asshole gently. Mari finally nodded and leaned forward, putting her head on Sarah’s shoulder.
After running her finger a couple of times more around the tight hole, Sarah increased the pressure. She winced as Mari’s teeth bit into her shoulder, but kept pressing slowly. After a little prodding and wriggling, she worked about one knuckle into the tight hole. Pausing to give Mari a chance to accustom herself to the intrusion, she felt the pressure on her skin ease.
“You ok?” whispered Sarah with concern in her voice.
Mari nodded and mumbled, a faint “uh-huh,” muffled by the blonde’s shoulder. She hugged Sarah tighter, then pushed back against the invading finger. Sarah winced as Mari’s teeth clenched on her collarbone. It was enough, however, to embed her slim digit to the hilt. As she moved it around, she could feel it through the thin wall of skin with the fingers on her other hand. It was intriguing to her, and brought back the exciting memories of her own lewd experience. She waited for a signal from Mari, whose chest was rising and falling with a heavy rhythm.
Finally the pain subsided from her shoulder as Mari unclenched her perfect teeth. Sarah looked down and saw a tear making its way slowly down her friend’s cheek. Mari looked up and smiled, then lifted herself up just a hair before pushing back at Sarah’s fingers. She winced, but continued her pumping motion, slowly building to up longer strokes.
Once Sarah realized her friend was ok, she began to thrust back. Mari was eagerly bouncing now that the finger in her ass was sliding easily. The sensation of penetration both fore and aft was overwhelming. The blonde girl tried to alternate her thrusts like David and Rob had, pulling out on one side while pushing in on the other. The excitement was contagious, and the each girl fed off the other. Sarah’s pussy was so wet she could feel wet rivulets sliding down the insides of her thighs.
“Oh god!” Mari was getting closer. She threw her head back, her luxurious hair swinging behind her. Her bouncing breasts were pushed forward, their nipples hard as rock. Sarah leaned forward and took one between her teeth, nibbling and chewing gently. Mari’s breath was coming in gasps and her torso was starting to shake.
Letting go of a nipple, Sarah moved her face up to Mari’s ear and whispered, “now imagine if these fingers were two big, hard cocks ... fucking your ass and pussy...” Mari lost it.
Her world exploded into a swirl of chills and warmth and colors and sounds. Her whole body was shaking, muscles contracting and expanding out of control. Streams of energy were rushing through her body, originating between her legs and rushing out to the tips of her curled toes and the roots of the dark hair on her head. She could feel Sarah’s fingers move in and out like in slow motion as she was carried through the most powerful orgasm in her life.
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