Sharon parted her thighs, unhesitatingly pulling at the belt of her robe. She pulled the garment from her body and exposed her slender young body to her mother's eyes. Again Gloria groaned and swayed back and forth as her eyes moved from her daughter to her son. "Are you going to come, Mother?" Sharon asked, enjoying this lewd display of bodies and emotions. "Does looking at Stan and me make you come? Is that it?"
"God, oh God, darling…" Gloria moaned as her orgasm roared and roared, yet never igniting. "I can't seem to… reach it!"
For a long time the two watched their mother as her climax came close, yet evaded the absolute peak of ecstasy. Stan removed his shorts and lay nakedly with his penis now erected. He looked from his mother to his sister, and the more of her body he saw, the more passionate he became. Sharon parted her slim, tanned thighs, the moist lips of her vagina peeking moistly from the silken strands of her blonde pubic hair.
"Please…" Gloria moaned as she watched her two children lay in obscene posture for her. "Would you… God, I can't ask… that!"
"You can, Mother," Sharon said, growing with heated lust as her brother's penis waved enticingly in the air. "You can ask."
"It's so close…" Gloria whispered. "So close maybe if… if… you two would… fuck… yes, that's it… let me watch you… please, Stan, God please, let me watch you fuck your sister!" The last came out in a high pitched wail of despair.
Staring in amazement at the mother they had never seen before – this new woman – Stan looked at his sister. "Should we, Sister?" he questioned.
"She said to, didn't she?" Sharon eagerly crawled toward her brother, her hands reaching for his throbbing penis. "Mother told us to fuck."
"Yes… yes, fuck…" Gloria groaned, watching her daughter work her small fist up and down her brother's penis. "Please, Stan… fuck Sharon… let me watch you do it! I want to see you stick that lovely cock in her cunt!"
Hearing the lewd words come from her – words she had never spoken before – Stan raised up as Sharon lay back on the bed, spreading her thighs wide to give him access to her now hungry vagina. As he moved between her legs, Sharon eagerly grabbed his waving organ and pulled it down to meet her arching crotch.
Gloria observed the swollen head enter the tender lips of her daughter's vagina, and immediately was rewarded with a small orgasm. As her eyes stared in lustful desire, she observed her son's penis plunge hotly and effortlessly into the young girl's clasping passage. "Now, do it!" she screamed like a demented animal. "Fuck her pussy, Stan! Fuck Sharon's little snatch… give her some cock… fuck… fuck fuck…"
Stan's buttocks lifted and plunged, driving his hard weapon deeply into the tight channel as his sister reared up to meet his lunging cudgel with glee. She squealed in delight with every pistonlike thrust, her hands wrapped around his smooth, naked back to hold him tightly to her crushed breasts.
"Wrap your legs around his ass, Sharon," Gloria murmured, feeling the waves of ecstasy wash into her veins with lapping tongues of fire. "Fuck his cock fuck your brother's Goddamn hard prick…"
"I am… I am," Sharon squealed, arching her buttocks from the bed in quick thrusts to accept the full length of Stan's ramrodding staff. Her hands moved down his back to clutch at his heaving buttocks. Digging her fingers into the crevice between the muscular, tight cheeks, she urged him to greater efforts. Gasps of straining bodies filled the room, as did the moist slap of the teenage bellies as brother and sister strived to fulfill each other with a climax. Stan's heavy testicles bounced against his sister's buttock cheeks, and Gloria leaned down to observe the incestuous act she had initiated. "I am fucking him, Mother! I'm fucking Stan's prick…"
Suddenly, Gloria felt the intense eruption of her orgasm began. She squealed through her clamped teeth as it struck with the force of a tornado. Her thighs pressed tightly together as the sensitive bud of her clitoris seemed to throb as a separate part of her body.
"I'm coming… I'm coming…" she shouted loudly.
"Me, too!" Sharon answered with a wild, shrill scream. "I'm coming, too…"
Stan's plunging organ suddenly jerked deeply inside his sister's tight vagina, then began to spew forth his semen in scalding spurts. The two teen-age bodies writhed and squirmed about on the bed in delicious ecstasy, bellowing out their completion.
Pulling his limp and slimy member from his sister's clasping, dripping orifice, Stan rolled onto his back, his chest heaving with exhausted breathing. Sharon, still sprawled in lewd abandon, gasped like a fish out of water. Gloria, now laying across the bed, was trembling as the last sparks of the most intense orgasm she had ever experienced left her body, looked with loving concern at her children. After a long time, the three began to stir.
"I'll get a cloth," Gloria said, standing up and going to the bathroom. She returned with a moist towel in her hands. Smiling down at the tired children, she said, "Here… let me clean you up."
Leaning over her son, she wiped the evidence of his incestuous copulation from his penis, making certain to clean below his now empty testicles. Finished with her son, she ran the towel between her thirteen-year-old daughter's still quivering thighs, letting the towel soak up the deposit of sperm he had shot into her body.
"Then you like to watch, is that it, Mother?" Stan asked an hour later as they sat in the living room once more. "Is that what turns you on?"
"It seems to be that way," Gloria replied. All shame and embarrassment had gone, leaving only excited discovery. "Only… I didn't know it until now."
She questioned the boy and girl about how long they had been doing things of this nature with each other, and was amazed to find out it had been going on for a number of years without her finding out.
"At least you don't have to sneak around, not now," Gloria told them. "Just as long as you let me watch!"
"Groovy!" Sharon giggled. "It's fun for someone to watch me. It was better tonight than, ever before."
"Have either of you two ever fucked anyone else?" Gloria asked. The language was now a part of their conversation, each in his own way thrilling to the use of the vulgar words.
"I haven't," Stan said. "Only Sis so far."
"Me neither," Sharon admitted. "I've had one boy try it, but I told Stan and he ran him off."
"Have you ever…" Gloria hesitated, wondering if she might be going too far with the youngsters. "I mean… have you ever used you're… mouths?"
Sharon and Stan laughed. "You mean have we, ever sucked each other off?" Sharon said. "You bet we have! I think sucking is real groovy!"
Excitement bubbled up in Gloria, her eyes shining once more with lust. "Could you do… I mean, do you think I could watch you do that?"
"Oh, Mother," Stan said. "Why hold back? There's nothing to hide now. You want to watch us suck each other off?"
"Yes…" Gloria admitted, flushing a little. "I'd like to watch you suck each other. All the way…"
"Don't be ashamed, Mother," Sharon said. "Watching is your bag. We aren't ashamed of it, are we, Stan?"
"Fuck, no!" her brother replied, enjoying his new freedom. "I'll eat Sharon's pussy… and she'll suck my prick. Just like you say… all the way!"
Sitting on the couch, Gloria watched her children crawl to the floor. They were still naked, and Stan lay on his back, but Gloria wanted him to be on top of his sister. "I can see better that way," she explained.
"I know, Mother," Sharon said, looking up from the floor. "Why don't you take off your clothes while you, watch. It might be even better if you're naked, too."
"Sure, Mom," Stan agreed. "I've always wondered what your pussy looked like. Come on… show us your cunt!"
Giggling like a school girl, Gloria removed her clothing. Her breasts were large and firm, waving before her without sagging. The dark circles around her erect nipples were almost brown in color, and the thick bush of pubic hair was a perfect triangle concealing her quivering vaginal lips. She blushed as her children examined her naked body, as if it were she who was the innocent young girl.