Jack, too, was edging closer, until he realized that the wet head of his prick was pressing into the warmth of Karen's rounded belly. He was about to hurriedly back away when she wrapped her arms around his neck and buried her face in his chest.
"Jack," she said softly, "it must be sort of painful to walk around like that…" And she rolled her hips, massaging his cock between their bodies.
"Karen…" Without thinking, Jack's arms went around his sister and he filled his hands with the softness of her ass cheeks.
As he kneaded Karen's firm ass, he was unconsciously working her skirt higher and higher, until soon he was clutching the cool skin of her ass cheeks. It took a little longer to work the front of her skirt up.
"Mmmmm," Karen sighed when she felt her brother's burning cock nuzzle her fleshy, hair-covered cunt. She knew if he went an inch lower she'd soak him. Slowly, she used her arms around his neck to pull him to the floor. The canned goods were forgotten.
Jack visibly tensed as he knelt between his sister's spread legs. Her big hairy pussy was parted for him, exposing her cuntlips shimmering with a coating of scented cunt juice. Her skirt was bunched above her belly button and her hips were lifting, thrusting her wet, gaping pussy toward her brother's bulging cock.
"Do I have to tell you what I want, Jack?" she whispered lewdly, spreading her thighs even wider.
"You little cock-teaser," Jack groaned, falling on top of her. She reached down and guided the fat head of his waving prick into her soaked cunt. As it slipped in, he felt the tight tube of her cunt snapping at him and he shoved as deeply as he could.
"Ahhh!" Karen groaned under her brother's plunging cock. She could feel him stretching her pussy and raised her legs and wrapped them around his waist.
"Uhh! Harder, harder!" she cried, pounding his ass with her heels.
Jack smacked his long, thick cock into her hot, stretched cunt, his eyes narrowing with lustful delight. Karen's hips were lifting as he slammed down, and dropping as he raised up. She could feel her cuntlips clinging to his thick shaft, stretching and pulling away until they caught on the base of his cockhead. Then he was driving inward again, rolling her pussylips back and into the hot mouth of her spasming cunt hole.
"Oh, God, Jack!" Karen screamed. "Fuck me harder! I need it so bad!"
Jack felt her go crazy beneath him, her ass squirming into the floorboards. Her soft, warm body writhed and bucked as he surged in and out of her happy cunt. His heavy balls bounced with bruising force against the soft bottoms of her juice-smeared ass cheeks. They were churning, ready to pump her cunt full of boiling fuck-juice!
"Ahhh, give it to me, Jack!"
Her brother fucked on and on, his ass bouncing rapidly, plunging his cock deep into her pussy. Her cunt juice splattered out and coated their pubic hairs and thighs every time their bellies smacked.
"Ohh, it's so good!" she groaned.
"Bet your ass it's good," Jack grunted, swiveling his hips as her sucking cunt swallowed his fat cock and squeezed it. He suddenly bent down and kissed her.
Karen groaned and took his tongue far into her mouth, feeling that somehow this kissing was even more exciting and forbidden than fucking. Jack licked the insides of her cheeks and twirled his tongue all around hers, then he drew his sister's pink tongue into his mouth and began sucking it.
"Ummmmm!" Karen moaned, her tongue and cheeks tingling almost as much as her pussy. She pounded her heels into his ass harder and hunched her cunt up at his plunging prick. Her older brother's fat cock seemed to have been made just for her tight cunt, and she ground up against his base as he slammed down.
"Were… uhh… were you watching in the bathroom?" she asked.
"Sure was," Jack said, not missing a stroke. "When you were training as a gymnast, I never thought you'd end up suckin' your own cunt!"
"Turned you on, huh?" she asked. "Well, how does this feel?" And she threw her legs up and locked her ankles behind his neck. "Now you can really throw it to me!" she hissed, wriggling her ass.
"Oh, Jeez!" Jack groaned. He saw Karen grab her legs behind the knees to curl herself into an even tighter ball. Now she was really open and exposed for whatever he wanted.
"Come on, fuck me!" she cried. "Throw it to me hard!"
Jack increased his efforts, hammering her soaked cunt with harder, shorter strokes. He reached beneath his swinging balls and dug his finger into the tight dimple under her cunthole.
"Aghhh!" Karen grunted, and Jack felt her sphincter close over his first knuckle. Not only that, but her cunt grabbed him as well, pulsating around his cock with elastic firmness.
Karen caught her breath as she felt her brother shove his finger up her asshole, and admired his skill. He was careful to use the ball of his finger against her sensitive, silken lining as he massaged it. Gradually, she loosened, and soon felt his palm press against the crack of her ass.
"Oh, Jack," she groaned, "that feels great! Dig it into me, big brother, scrape my hot ass harder! Fuck me, move that cock!"
"You sure got a hot, tight ass, Sis!" Jack complimented her, settling his weight down a little more. "Feels like it's eating my finger!"
"Yours is the first finger that's got up there," Karen said.
"You mean I got your cherry!" Jack grinned, plunging his finger higher and circling it slowly. He felt her hot, humid ass tighten around his probing digit. Her asshole seemed to nibble at it as if trying to draw it deeper.
"Open that blouse," Jack ordered. "I want to suck on those gorgeous tits!"
Karen used one hand to unbutton and peel apart the front of her blouse. Her fat tits quivered and wobbled with Jack's hard thrusts, and his mouth watered for a taste of the swollen nipples dancing under his eyes.
"Yowwwww?" Karen yelled, writhing sensuously as her brother filled his mouth with her soft tit and lightly bit her gristly nipple.
"Suck them, suck them!" she cried, her voice sharpening with pleasure-pain. She could see the firm, white mounds shaking beneath his handsome face and groaned with passion, for he was still plunging his fat cock and thrilling finger in and out of her holes with great enthusiasm.
"Stop, Jack! Stop!" Karen cried a few minutes later. "I don't want to come so fast!"
Jack lifted his face from her wet tits and pulled his prick from her soggy cunt with a soft, suctioning "pop". He left his finger in her ass, however, pumping and twisting it as enthusiastically as ever.
"Want to try something else?" he asked, his hard cock throbbing against her warm thighs.
Karen looked around, spotted a low bench covered with boxes and got an idea. "Help me up," she said.
She walked to the bench and with one impatient sweep of her arm knocked all the boxes to the floor. She sat her ass on it and lay back, then lifted her legs and brought her knees up to her shoulders.
Her cunt gaped, dark and wet, pouting like a toothless mouth from the center of her thick bush.
"Hungry, Jack?" she asked lewdly, clenching her butt muscles and making her red-lipped pussy pucker and ooze, as if blowing him a wet kiss.
Jack stood in front of her upturned ass, his cock jerking over her hairy cunt. It was at just the right height for him to start fucking again. Instead, he dropped to his knees and stared directly into her quivering pussy. The hot scent of her leaking cunt juice made his tongue hang out, and when Karen reached down and stretched the hole even wider he dived right in.
"Yes, Jack, yes! Ohhh… yessss! Eat me, tongue fuck the shit right out of me!" Karen's fingers tangled in his hair, holding him to her tightly.
Her eyes were wide as she stared down at his nodding head. Jack used his tongue like a paintbrush, caressing her loose pussylips and twirling around the base of her straining, over-large clit. She could feel that tender, sensitive organ quiver under its delicate tissues and dug her nails into his scalp.