Bobby lunged.
Donna yelped.
"It's in!" she screamed. "Your cock is up my fucking asshole, Bobby! Ohhhh, you're stretching mother's asshole… filling her ass with that hard cock. More, darling, more!"
Bobby shoved his cock hard.
"Ooooeeeee!" Donna wailed.
She felt Kathy's hand on her ass cheek, and the other hand was under her body, rubbing along her distended cunt.
"Fuck her, Bobby!" Donna heard Kathy urging in a low, hot voice. "Fuck your mother up her tight asshole! Fuck her in her hot ass, Bobby! Ooooo, your asshole is sure stretched, Donna! Oh, that looks so good! I'm next… I get fucked up my ass next!"
Donna felt her son fucking in and out. Her asshole felt stuffed, very staffed and on fire, but the fire was delicious, sending waves of ecstasy through her. She shot her ass back against him as he fucked forward, feeling her son's cock throb hotly between the clenching ring of her asshole. The sensations were much different than having his cock in her cunt, but just as good.
"Ooo, darling, darling," she squealed. "Fuck me this way! Ooo, I wish I knew about this before! Fuck my ass, Bobby! Fuck my hot asshole with your hot, hard, sweet cock!"
Bobby was fucking his cock in and out of his mother's tight asshole swiftly, his balls beating against the swollen lips of her pussy, and Kathy's fingers were rubbing at Donna's cunt. Donna thrashed her upturned, naked ass about with wild, burning ecstasy, gurgling when her son fucked deep.
She felt Kathy's hot, wet lips kissing at the cheeks of her ass, that small tongue licking eagerly at her flesh, fucking about the base of her spine as if she was trying to lick Donna's asshole while Bobby fucked her. The hot breath from Kathy further enflamed Donna, and her cunt exploded with a tremendous orgasm. The orgasm caused her asshole to become very tight around her son's fucking cock, and Donna was sure she was coming with her asshole too.
An ecstatic scream ripped from her constricted throat. Then she felt her son's cock throb and lurch inside her asshole.
"Come, darling!" Donna screamed with pleasure. "Come up mother's asshole! Fill my hot asshole with that sweet, sweet come juice!"
When her son came, Donna felt the thick come juice splash about the velvety lining of her asshole, triggering a series of wild, roaring orgasms that seemed never to end. The sensations rumbling through her caused her body to become very weak, and she slumped to the floor, her asshole clenching and relaxing, her ass cheeks shivering, her cunt pulsating with milder orgasms now. She felt the lips of both Kathy and her son kissing and licking her quivering ass cheeks, helping her come down from the greatest ecstasy she had ever experienced.
After she had recovered a bit, she rolled onto her back. Immediately her son and Kathy were in her arms. Donna hugged them tightly.
"I know where I want to get fucked from now on," Donna laughed, sounding happy. "Up the fucking asshole!"
"Among other things," Kathy giggled, her mouth near Donna's tit. "Like your hairy, hot cunt."
"And your mouth, Mom," Bobby said, running his tongue about his mother's nipple. "Don't forget your mouth!"
"I want to get fucked every place," Donna said. "I want that cock up my pussy, in my mouth, in my asshole… and, Kathy, I want to suck your sweet little cunt forever."
Donna hugged Kathy and her son tightly, feeling happier than she had ever felt before.