"No Paul, don't," Debby persisted. She crouched beneath him without struggling, unable to believe that he would willfully treat her so sadistically. "I know you're kidding me. Take it away now – I want to feel your cock back in my pussy."
Paul said nothing. Instead he reared back his hips and thrust brutally forward, forcing the knob of his jerking dick into the rubbery grip of her ravaged asshole.
"Unhhhh," Debby grunted. She gasped in horror and desperately tried to struggle away from him. Already she could feel her puckered little ass ring stretching painfully around the thickness of his prick.
"Get the Vaseline," Paul muttered.
Annette turned quickly to the bureau and returned with a small jar of petroleum jelly. She unscrewed the top and held the jar out to Paul.
"Aww, God, stop it!" Debby cried. Her voice was urgent now. She was terrified of having her asshole invaded by her boy's gigantic dick. "Don't do this to your mother, leave me alone!"
Paul thrust his hand into the jar and withdrew a thick gob of the gooey jelly. Smiling, he smeared it all around his ten-inch rod as his knob speared into his mother's asshole. Liberally he coated the length of his throbbing prick.
Then he dug his hands into her ass cheeks and began fucking brutally into her. He panted and grunted, utterly oblivious to the pain he might cause her. Paul was obsessed with getting every inch of his dick into her asshole.
"Ungggghhhh… stop it, Paul, please ungggghhhh…" Debby groaned and fell flat on her stomach, her ass cheeks jiggling around the thrusting shaft of her sons cock.
It felt as if she were being impaled on a sword. More and, more of his prick invaded her ass, stretching her anal lips, boring into the root of her tunnel. Debby felt an incredible warmth throbbing through her asshole. It was the most filled up sensation she'd ever had in her life.
She stopped protesting. Instead she lay submissively beneath her humping son, biting her lip, helplessly waiting until he got all his dick inside her.
"Ahhh shit, is that good!" Paul sighed. Over half of his cock was in her asshole now, and he could feel her powerful asshole muscles clasping and clenching around his dick. Paul thrust into her even more brutally. He buried his cock to the root between her cheeks.
"Isn't that good, Mom?" Annette asked, grinning beside the bed. "I just love it when Paul fucks me up the ass!"
Debby only groaned. Paul withdrew his throbbing cock slowly from her tunnel, wincing with the tightness of her hole. Then he feverishly worked his hips, fucking her asshole with long, driving strokes of his cum-swollen cock.
"Unggghhh," Debby moaned. "Oh God, Paul… unhhh please, Son anhhhhhh…"
"Like it, Mom?" Paul whispered. He fucked her ass harder and harder, making the bed shake on the floor, his firm stomach slapping against her blushing cheeks. "Feels good now, don't it? Unh… sure feels good to me!"
Then Debby realized how good it did feel, and how close her son's thrusting dick had her to coming.
It was like a throbbing, tingling warmth shooting through her asshole, wetting her pussy, making her ass muscles milk around his dick. Debby felt the depraved sensations and instinctively began to writhe, pumping her ass back to meet his strokes. A second later she was fucking her son as fast as she could.
"Yes, Paul, oh yes!" she cried. Debby clawed the sheets and humped rhythmically at his driving cock. Shamelessly she thrust her hands under her to fingerfuck her dripping cunt. "Fuck meee, Paul, fuck my asshole! That is good, fuck he haaard!"
Paul immediately began to ream out her asshole with all the energy he could muster. His Vaseline coated, cock made slurping sounds as it pumped through her puckered ring, going deeper up her ass with every stroke. His balls slapped against her thighs, his prick throbbed stiffer and stiffer, inside her tunnel. The rubbery grip of Debby's ass had him very close to cumming.
Debby exploded.
"Fuck meeeee!" she shrieked. She grimaced in ecstasy as the spasms of cumming bored through her pussy and asshole. "Harder, harder, I'm cuming Paul. I'm cuummmmiiinnnggg…"
"Unh shit," Paul gasped. "Unh… there… unh…"
The thick load of his jism burst from the purplish knob of his cock. Paul worked his spurting prick through his mother's asshole, moaning as the gushers of his cream shot from his twitching cum slit. There was so much of his jism that it filled her asshole completely. Sighing, Paul watched as his cum burbled out of her hole around his prick and dripped luridly onto the bed.
Then it was over. Debby groaned and collapsed onto the mattress, already beginning to smile. It didn't matter that her son had raped her up the ass. The point was that she had enjoyed it, just as she would enjoy everything she did with Paul and Annette in the years to come.
They could fuck constantly, all day and night long. She loved her children so much.