Marla swallowed often, wanting to shove her face into her son's crotch, to taste his hot balls, to inhale the delicate sweetness of her daughter's wet, fiery cunt. She wanted to taste them, taste them both. She wanted to swirl her tongue about the base of her son's cock to get a taste of those sweet cunt juices clinging to it. She wanted to lick at her son's balls, to drag her tongue up to feel and taste the stretch of her daughter's lovely cunt.

But she didn't do any of those things.

"Oooh, I'm about to come!" Sally squealed, grinding on her brother's cock, instinct moving her hips. "I'm gonna come, Bob! Ohhh, my pussy is burning up! I'm about to come… ohhh, see!"

Marla saw. She saw the lips of her daughter's cunt clamp about Bob's cock, the contractions visible to her blazing eyes. Sally squealed loudly and smashed her cunt onto Bob's cock hard, straining onto him. Her ass shook and her slim thighs pressed about his hips.

Marla twisted her son's balls.

"Give it to her now, Bob!" she cried out.

"Ohhh, Bob, squirt it to your sister! Come in her, Bob! Ohhh, baby, please, come in Sally's hot cunt!"

"I am! I'm gonna come in her cunt!"

"Yes! Oh. God… yes!" Marla cried out. When her son groaned, she felt his balls go into spasms. She watched the base of his cock jerk, and Sally squealed as she felt her brother gushing his come-juice up into her sucking cunt. Marla clung to her son's balls, breathing hard and fast, her own pussy dripping juices.

Sally, her orgasm fading away, shivered as she leaned forward against her brother, and whimpered at the receding ecstasy. Marla gazed at her pink cunt as it squeezed Bob's cock from it. When her son's cock drooped, she stared at the glistening wetness. A small bubble of come-juice clung to his piss-hole.