His enormous cock looked as stiff as ever, pulsing over his stomach as he gazed transfixedly at his mother's naked body. Sylvia slid her hand up again, shuddering with fuck-need as she lewdly fondled his prick.
"It's still such a hard-on, Tony," she panted. "But you just came so hard. I was swallowing for over a minute isn't it going to get soft now?"
"I don't think so," Tony said.
"Oh, Tony. You… you need another cum, then, don't you? I guess it wasn't enough for you, just shooting out one load. You've still got more cum in your balls. Do you…" she moaned, squeezing his cock harder, "… do you want me to help you cum again?"
"I guess." Tony stared at her body, licking his lips. "Mom, could you take off your robe the rest of the way now?"
"… all right, Tony. If that's what you want."
She rose from the bed, standing beside it, her face flushed with shame and desire. Sylvia peeled the robe off of her delicate shoulders and let it fall to the floor, revealing to her own son the incredible naked body that men had ogled for as long as she could remember. She turned to let him see all of her, wiggling her round, plump ass salaciously. When she turned back, her son's cock throbbed even more stiffly than before, his wet cock-shaft jerking and twitching painfully over his navel.
"Mom, could you get on top of me?" Tony murmured.
"But… but, oh, Tony." The naked mother trembled with lust, realizing what her son wanted. "I really don't think we better. I'm your mother. You can't want to fuck your very own mother."
"Please," Tony winced. "Please, Mom…"
"Oh, sweetheart. Oh, this is so wrong…"
But she was already crawling onto the bed with him, shaking with incestuous passion, already knowing that she was going to succumb to her wanton need to give her pussy to her own son. Sylvia's nipples were painfully stiff, and her cunt was so hot and wet that it hurt, dripping with juice, creaming on the insides of her thighs. She gasped as she crawled onto her son, straddling him, planting her knees on the bed to either side of his lean hips.