Jimmy held his big cock in his fist, looming over her, nudging the swollen tip between the sopping-wet lips of her pussy. The big-tittied brunette raised ha head to watch the meat pole going into her. In and in, the giant prick pushed, disappearing into her cunt fur, spreading her pussy channel to bursting around the invading thickness of his cock.

"Unnggggh! Oh, little brother! Unngggh! Fuck your big sister, Jimmy! Unngggh, unngggh, fuck big sister's horny little cunt!"

Karen started wiggling and humping beneath him, feverishly humping her hot little ass off the carpet. Her enormous, creamy-white tits started bouncing and jiggling again as she met her brother's accelerating rhythm, thrusting her wet, itchy pussy onto the accelerating rhythm, thrusting her wet, itchy pussy onto the satisfying stiffness of his prick.

"Push it all the way in now, Jimmy!" she gasped. "You've got such a big boner, your cock feels so fucking good! Unngggh! Ram it up my pussy, Jimmy! Oh, shit, my pussy needs your hard cock!"

Jimmy braced his weight on his elbows, giving her giant tits plenty of room to bounce and jiggle beneath him. He spread his knees apart, putting his hips at a good angle to really hammer his cock in.

He groaned as he came down hard, suddenly stuffing his big sister's wet, tight little cunt with every inch of his cock shaft. Then he started humping fast and hard between her spread eagled legs, rhythmically spearing his boner in and out of her cunt.

"Harder, Jimmy, harder!"

The horny, naked sister cocked her legs up even higher, groaning as she twined her calves together high across his back. Then she started fucking even harder than before, her tits bouncing and shaking as she pistoned her wet, aching pussy onto his cock.

"Fuck my pussy, fuck my horny pussy! Unngggh! You've got such a big dick, little brother! Nuunnngggh! My pussy loves your hard-on, Jimmy! Oh, fuck, oh, shit, keep fucking me with it! Fuck my pussy til I can't even walk!"