"Hurry, Bob!" Sally gurgled, swinging her naked ass about. "Ohhhh, yes, hurry and shove it in me! Ooooh, I like it! It feels so big in me… I like it better than my fingers!"

Marla pulled her hands from them, placing her palms on the cheeks of her son's naked ass. She leaned in close, watching his cock slide into her daughter's cunt. Her other hand moved beneath Sally's body, cupping one of her tits, squeezing it. Her own cunt was throbbing, her panties feeling tighter than ever, now creeping back into her pussy-slit. She pushed on her son's ass with her hand.

"Fuck her, Bob!" she groaned. "Ohhhh, fuck that sweet cunt! Fuck it hard, Bob! Sally loves it! Your sister loves that hard cock up her hot cunt, don't you, Sally? Don't you love your brother's cock in your cunt?"

"Yes!" Sally screeched, feeling her brother's cock deep inside her, feeling the hard throbbing of it. "I love it, Mother! Fuck me, Bob! Ohhhh, fuck me good!"

Bob lunged his cock back and forth, biting his tongue as he gasped in ecstasy. Marla listened to the wet sounds of her son's cock going in and out of her daughter's cunt. She slipped her hand down his ass, shoving it between his thighs. She grabbed his swinging balls, clutching them tightly, twisting and pulling. Her other hand shoved underneath Sally's sweater, and she began to squeeze her naked tits, pulling and twisting at her daughter's stiff nipple.

"Oh, it's so beautiful," she moaned. "Fuck her, Bob! Ohhhh, that's so beautiful, seeing your cock in your sister's cunt!"

She ran her hand feverishly about her daughter's tits, puffing them from her sweater and puffing Sally's skirt up onto her back. She fondled her daughter's belly, then moved her fingers down to her boiling cunt. She rubbed Sally's swollen clit, feeling her son's cock pounding back and forth violently. She felt how full her son's balls were in her hot hand. With a hissing sound, Marla leaned forward and kissed her daughter's humping ass, rubbing at Sally's distended clit with a firm finger.