"Please, Karen…" she whispered in a little sob.
"Shhhhh," Karen whispered again, pinching Sarah's nipples gently through her dress. "Be quiet and let me relax you."
Sarah began to pant hotly when one of Karen's hands moved down from her tits, over her trembling stomach. She kept her hand on top of Karen's, and when she felt her sister's fingers pressing at her cunt, through her dress and panties, she exerted pressure with her own hand.
"I knew this was it, Sarah," Karen purred in her ear, the tip of her tongue fucking out to lick at the lobe. "I could see it."
Her fingers rubbed lightly up and down, then firmer. Sarah's cunt bulged inside her panties, and when her sister rubbed at it, she groaned softly, arching her hips into the hand. She sobbed as she felt Karen inching her dress up, using both hands now. She wanted to stop her, but she didn't want to stop her. Her cunt was on fire, as wet and hot as it had been the day she fucked her son. Sarah lost all control, just as she had that day, when her sister bunched her dress around her waist, and rubbed at her cunt through her panties.
"You're so wet, Sarah," Karen whispered, her voice very thick and low. "You've soaked your panties, baby."
"Karen, please…"
Again her sister shushed her, sliding her hand down the elastic waist of Sarah's panties. Sarah couldn't breathe as she felt Karen's fingers brush through the soft hair of her cunt and when a fingertip touched her clit her hips lurched forward, wanting the pressure.
Karen was nibbling at her ear now, and rubbing two fingers along the swollen sides of Sarah's bulging clit squeezing it between them. Sarah twisted her ass, feeling her sister press her hips forward. She balled her fingers into fists at her hips, fighting to keep from turning in Karen's arms, grabbing her tits, kissing her, licking her lips and sucking her tongue, feeling her sister's body, her ass, her cunt.
"Mmmmm, nice and juicy," Karen purred, kissing lightly at Sarah's ear. "Your pussy is very hot and juicy, Sarah."
Sarah gasped as her sister worked a finger into the steamy depths of her cunt. As Karen slowly pushed and pulled her finger, Sarah suddenly became aware of being in front of the window, her dress up, and her sister finger-fucking her cunt. Heat moved over her face, but the burn of her pussy intensified and she pushed her palm hard on top of Karen's hand between her thighs.
"Let me," Karen mewled, her wet tongue circling Sarah's ear. "Let me take care of it… make you feel good… take the tension out of you."
Her finger darted in and out of Sarah's cunt, picking up speed as the heel of her hand smashed the straining clit. Sarah spread her feet on the floor, wider, her hips humping to the rhythm of her sister's penetrating finger. She cooed and gurgled softly, the hairy lips of her cunt clutching Karen's finger.
"Karen?" Sarah cried out.
"Oh, yes, Sarah!" Karen purred, ramming her finger deep into her sister's cunt. "Come, Sarah!"
Sarah's cunt was exploding, the hairy lips in spasms of tight heat, her clit bursting. She cried out and smashed her hand on top of her sister's, pushing the buried finger a bit deeper. The orgasm was good, but it was not as strong as having her son's cock in her cunt. When the orgasm faded, she was no more relieved than before, and her cunt burned and seeped just as insatiably.
"My, you are in bad shape, aren't you?" Karen whispered against her ear, pumping her finger in and out once more. "You need some more, don't you, Sarah?"
"God, oh my God!" Sarah cried out. "I need much more, Karen! I need… need so much more!"
"Here," Karen said, slipping her hand out of Sarah's panties and pulling her across the room to the couch. "I'll do you up good."
Sarah didn't resist as her sister knelt before her, dragging her tight bikini panties down. She stepped from them, holding her dress up herself. When Karen gently pushed her to the couch, she sat down willingly, her eyes smoldering as she breathed excitedly. Karen pushed her knees apart, gazing at the juicy pink cunt with the soft curls of hair along the slit, wide at the top. Sarah began to churn her ass when her sister caressed the soft inner flesh of her thighs, then stroked her throbbing cunt tenderly. Sarah's hand whipped up to her tits, clasping them inside her dress, arching her cunt to Karen's hand, twisting with passion.
Karen pushed her sister's legs wider, and Sarah cried out and flung them apart, pushing her cunt to Karen's hands. Karen used both hands, her fingers spreading the pink wet cunt, then smashing the hairy lips together. She spread Sarah's cunt again, watching her cunt bulge up with fiery stiffness.
Stiffening four of her fingers together, Karen pushed them into her sister's cunt, bringing a squeal of ecstasy from Sarah. She began to fuck her fingers in and out, making wet sounds, the fingers of her other hand rubbing and agitating Sarah's intensely inflamed cunt.
"Ohhhh, Karen, Karen!" Sarah wailed, churning her hips up and down wantonly, twisting and wiggling, squeezing at her covered tits hard, making them tingle with a sort of pleasure and pain. "Ahhhh, yes, Karen!"
Karen's eyes glowed brightly as she watched Sarah's naked hips fly up and down, grinding on her fingers. She stabbed furiously, breathing hotly against one of Sarah's creamy thighs. The fresh, sweet scent of Sarah's juicy cunt filled her nostrils and she inhaled it greedily. She saw the juices seeping past her buried fingers, smearing the humping cheeks of Sarah's tight ass.
"Harder!" Karen cried out. "Ohhhh, please, harder… faster… deeper! Ahhhh, more, Karen… more!"
Karen really didn't have to run her fingers back and forth. Sarah was riding them with her cunt furiously, sliding her hairy, tight cunt back and forth, almost to her palm. The wet sounds excited Karen, and her own cunt began to bubble with more wetness than before. She was on her knees between the spreading legs of her sister, and she pulled her hand from Sarah's cunt and slipped it under her own skirt, rubbing at the tight crotch of her own panties, feeling her cunt burn through the flimsy cloth.
Squishy sounds wore loud as Sarah pumped her cunt up and down on her sister's fingers. She twisted and rolled her ass about her hands digging at her tits then scooting down swiftly to her thighs where she clutched the inner softness and spread them as wide as she could.
"Ohhhhh, Karen!" she wailed. "Ahhhh, please! That's so good, Karen! Oooooh, so wonderful!"
Karen was panting, her eyes smoldering as she watched Sarah's hairy, soft, hot and wet cunt thrusting up and down. She could see the pink lips spread about her fingers, feel the softness of the inside, the steamy wetness. Her own cunt was on fire now, burning as hotly as her sister's, and she rushed her hand into her panties, finger fucking herself furiously.
"Pump, Sarah, pump!" she moaned.
"I am!" Karen sobbed, her fingers now on the lips of her stretched cunt, pulling it wider. "I am pumping!"
With her head twisting about, her eyes closed, Sarah gasped and cried out with ecstasy, ecstasy that was making her mind spin wilder and wilder. Her hips churned wantonly, the cheeks of her ass bunching.
"Karen! Ohhhhhhhh, Karen, it's going to happen!" she shrieked. "I'm about to come, Karen! Ohhhh, hard, please! Deeper… fuck me deeper! I'm about to come and I want to be fucked hard and deep!"
Screaming out her rapture, Sarah jerked upward, her arms wrapping around the back of them. She humped her ass up and down frantically while her sister once more rammed her fingers into her fiery cunt. The orgasm burned and swelled, and with a shout, Sarah came. The convulsions were strong, as strong as they had been when she fucked her son. Her ass lurched up, grinding as she screamed in ecstasy.
Karen felt Sarah's cunt grabbing and squeezing her fingers, and with a low moan of satisfaction, her own cunt contracted about her darting finger, but her orgasm was not as strong as Sarah's. As the orgasm wound down, Sarah's ass slumped, her long legs straight out, spread open. Karen pulled her drenched fingers out of her sister's bushy cunt, lifting her hand from her panties.