"Noooo," Marie whimpered. She was rolling her head back and forth now, the center-fold momentarily forgotten as she lolled in the trance of feverish masturbation. "I want it, Marie. Unh! I want something to suck!"

Suddenly her little sister was all over her, moving with the quick ferocity of a sex-starved animal. Before Kelly could do anything to stop her, the horny brunette had pushed up her nightie, exposing her plump thighs and pussy triangle. Kelly gasped helplessly as she watched her horny sister bury her head between her legs.

"Marie! Oh my God, you stop that!"

"Wanna suck you!" Marie burbled. She pushed her hands under her sister's hips, clutching the firm, ball-bearing cheeks of her ass. Holding herself firm between her sister's legs, Marie rubbed her face all over Kelly's creaming cunt.

"Oh fuck, it smells so good, Kelly," she whimpered. "Let me suck it for you want your juice in my mouth! Let me suck your hot cunt."

"No!" Kelly was so shocked that she could only struggle fitfully to pull away. "Take your mouth off of my pussy! I mean it, noooo!"

"Mmmmm…"

Clawing her sister's ass cheeks, Marie thrust her tongue deep inside her big sister's fuck hole, pausing to curl it tantalizingly around Kelly's cunt. Abruptly a lewd shudder coursed through Kelly's body. She'd never had her pussy sucked before.

"Mmm, Kelly!" Marie giggled. "You really taste good!" Marie started to lap at Kelly's cunt slit like a horny dog, slurping noisily as she swiped her tongue quickly up and down.

"Unh, stop!" Kelly squealed, making a last effort to push her away. Then the pleasure of the pussy sucking started to get to her.

It felt much, much different than jacking off. Kelly whimpered, splaying her thighs wider apart, thrusting her plump cunt mound up to her sister's tongue. A befuddling fog seemed to wash over her mind. Dazedly she looked down at Marie's squirming black-haired head, unable to believe that her sister would want to taste her pussy juice.