The youth's boner grew progressively stiffer, pulsing on the roof of her mouth, oozing out a steady flow of hot, sappy pre-cum. Contentedly, Cheryl swirled her tongue over and around his pulsing, mushroom-shaped cock head, thrusting her tongue teasingly into his piss hole, wanting to taste every drop of his jizz.

"Do you like the way I suck, little brother?" She popped his prick out of her mouth long enough to give him a teasing look, a strand of saliva hanging luridly between her lips and his cock tip. "Ummmmm, it sure is awfully stiff and sticky now, Kenny. Do you want me to suck really hard now, and make this big boner start squirting?"

Kenny just stared at her, obviously too excited to speak. Cheryl opened her mouth as wide as she could, again plunging her face into his hairy crotch, this time sinking even more of his prick between her lips.

The cockshaft was so swollen that it felt thicker than her wrist, and there was so much pre-cum oozing out of his cock head that it was like licking tasty juice out of a split orange. Cheryl swirled her tongue insatiably around his cock head, swabbing it, coating it with spit. She tightened her fist around the root of his cock lance, then started beating his meaty hard and fast again, her fist a blur as it whipped up and down his prick.

"I'm cumming!" Kenny cried in a choking voice. "Unnngggh! Suck my dick, big sister, suck my stiff, fucking cock! Unnnngggggh! Cumming!"

The kid's mammoth boner started to spew, blasting cock cream onto the roof of her mouth, spraying thick gobs of cum down his horny sister's throat. Eagerly, Cheryl clung to the jizz shooting pisser, jacking and sucking cock as hard as she could, determined to milk down every drop of her kid brother's jizz.

One of the things she loved best about sucking off her little brother was how much cum he always shot off! Her kid brother always shot off big, sometimes spurting forth so much of the tasty, salty jizz that she had to swallow as fast as she could to slurp it all down. And he was cumming the way right now, Cheryl thought, as she insatiably sucked and beat the squirting cock lance, gulping down the frothing white jism until she'd completely drained her kid brother's balls.