"Ahhhh, Donald!" Vivian lifted her head and whined like a wounded animal as she felt his middle finger probing her asshole. "No, Donald, for God's sake! Don't play with my asshole! No, it's so nasty!"

But Donald had already observed that his sex-crazed mother would give in to anything if she were horny enough. Still fucking his bloated cock furiously into her hairy cunt, he wormed his finger slowly into the tender, rubbery grip of her asshole.

Vivian gasped as she felt her shit muscles suck around the probing finger, welcoming it into her ass. An intense, forbidden fuck heat pulsed through her loins. She loved the way her son's finger felt up her asshole! Her asshole was actually throbbing on it!

"Y-y-yesss," she hissed, bucking her blushing buns harder than ever. "Unngghhh! Jack off my asshole, Donald! Oh, fuck, oh, piss, put your finger right up Mom's juicy butt!"

By now Vivian's pussy was so over laden with fuck juice that the sopping-wet lips of her cunt squished and gurgled every time her cunt sucked her son's cock. Her asshole contracted madly around her finger, sucking it deeply into her shitter.

Donald's prick was swelling longer and fatter, getting ready to shoot a big wad of cum. Vivian's belly knotted up as she felt her own long-awaited cum flowering deep inside her loins.

"Fuck me, bastard, fuck my pussy!" she gasped. "Fuck my brains out, baby! Unngghhh! Oh, shit, what a big cock! I'm cumming, you fucker!"

Her pussy exploded in orgasm, wetly clasping and spasming around her son's rock-hard prick. Donald fucked his finger all the way up her asshole, and Vivian felt her ravished shitter sucking his finger, too.

Grunting, her teenaged lover fucked his steely cock to the hilt in her cumming cunt. Vivian was delirious with pleasure as she felt the thick, sappy spunk shooting out of his cock knob, blowing deep inside her buttery cunt.