Eagerly, Bobby pulled a rigid nipple into his mouth, his hands holding her about the waist tightly. Susan felt her son's cock throbbing against her thigh, the cock head dripping and making her flesh wet. She reached between them and grasped his cock, rubbing the swollen cock head against her thigh, smearing her skin with those slippery juices, moaning softly as he sucked at her nipples, going from one tit to the other.

"Pretend I'm Mary," she whispered hotly against the top of his head. "Pretend I am Mary and you're going to fuck me, Bobby. Do what you want to me, with my body, and think of me as Mary."

She heard the wild, hot moan of her son as he sucked harder at her nipple. His cock was throbbing and she became afraid he would come off before it was inside her boiling cunt. She drew back, looking into his hot, glassy eyes.

"I'll be Mary for you, Bobby, and you can do everything with me that you've wanted to do with her."

Susan sank to the floor, sprawling backwards. She lay there looking at her son's cock with hungry eyes, spreading her legs and squeezing her tits. She twisted and writhed her naked ass against the carpet, opening and closing her legs for her son's pleasure. She knew he could see the parting of her thick cunt hair, see the puffiness of her pussy lips and the glistening moisture of her distended clit.

"Come on, darling," she urged, arching her hips up into the air enticingly. "I'm Mary, and you're going to get your cock in her cunt at last! Think of me as being Mary, eager for your cock. Come on, darling… fuck me! Fuck your Mary!"

Bobby went to his knees between his mother's widely parted thighs. He still had his pants on, and Susan didn't want to wait for him to shove them down. She arched her crotch toward his straining cock, feeling the swollen head of his prick make a burning contact with her wet cunt.