"Oh, little brother," she murmured, "You fuck and suck so good! God, don't ever stop!"

"Mmm-hmmmm," Mike whispered, slipping his left hand down her belly. He squeezed her twat mound with his palm, slowly digging inward. Her tiny clit was now throbbing quickly, almost matching the way her nipple was pulsating. "Baby… baby…" he panted, chewing the delicate flesh of her tits.

Susan could hardly believe how quickly her body was reacting to his fucking. She began moving her ass back and forth to match his fester stabs, thoroughly enjoying the way his cock speared in and out of her pussy. She gave another low muffled moan as she bit her lower lip. The beginnings of climax were already rumbling in the back of her pussy, slowly spasming forward. She squeezed bet cunt muscles savagely around his cock trapping him momentarily.

"Fuck me!" she begged. "God, slam that big dick in my little pussy… and tear it apart!"

Mike sat back on his haunches suddenly and yanked her legs apart with a savage move, as if she were a wishbone. He thrust his hips back until his cockhead just barely remained between her cuntlips, then jammed forward with all his strength. Even before the head of his prick hit the back, of her slit, he felt his sister flinch, then scream.

"Like it, whore?" he spat. "You like a big dick creaming your insides to fucking soup?"

"Yes… God, yes!" Susan gasped. "Just don't ever stop!"

"Baby, don't worry about that," he grunted. "I'm not gonna stop until you've been fucked. And when I say fucked, I mean like this!"

As he spoke those words, he began a brutal assault that increased in intensity with each move. Soon his ass was jerking back and forth in a blur, his belly slapping against her ass with loud smacking sounds. His nuts were flopping about, whacking into her cunthair.

Within a couple of minutes Susan felt the first stab of release drill through her cunt. The sensation grew, then exploded suddenly, causing her cunt to grip his shaft like a hot greasy hand. Her orgasm peaked, then fluttered there for what seemed like an eternity before subsiding.