Her cunt was bubbling, seeping juices until the hair along her puffy cuntlips was soaked. She slipped between Bob's thighs, lying on her stomach with her face pushed into his crotch, sucking his balls. Sliding her hands underneath his ass, Marla cupped his tight asscheeks, squeezing them, her eyes blazing as she watched her daughter mouthing his cock. She began to push her hairy cunt at the mattress, squirming so that her clit pressed at it.

When her daughter lifted her face again to breathe, Marla dropped Bob's balls and rushed her mouth to his cock. As before, she sucked it deeply, and raced her lips up and down it, whimpering in ecstasy, feeling his cock burn it tight lips. She wanted to suck him off now, and draw his bubbling, sweet come-juice into her mouth, yet she wanted to see Sally sucking his cock too.

Pulling her mouth away, she watched as Sally started sucking once more, and Marla began mouthing Bob's balls. She squeezed his ass tightly, her eyes fascinated with the way Sally was sucking her brother's cock.

"Ohhh, so good?" Bob gasped, his head lifting with the rumbling rapture in his crotch. "Ohhh Sally, suck me! Suck my cock, Sally! Mom, you're about to suck my fucking balls off? But ahhhh, it's so good!"

Sally felt her brother's cock throbbing faster, but she was enjoying herself so much, she no attention to it. She sucked hard, moving her stretched lips up and down, still taking only half of his cock into her mouth. Her tongue licked feverishly, and she found the seeping juices from his piss-hole coating her tongue. She liked the slippery taste of his fuck-juice, and enjoyed swallowing it.

Marla, too, felt her son's balls writhing, and unlike her daughter, she knew Bob was swiftly getting to the point of discharge. Her eyes stared at her daughter's lips, her mouth full of Bob's balls. She twisted her naked ass, humping her cunt at the mattress, her thighs opening and closing.