She felt the deep throbbing of her son's cock as he fucked into her gripping cunt swiftly. She could feel his cock rubbing hotly along her inflamed clitoris. Her body shook and shivered and she began to hunch her naked ass up and down, fucking back at him as grunts of delight burbled from her constricted throat.

"Oooo, so good, baby!" she whimpered, churning her ass up and down and rolling it about as he thrust his prick excitedly into her gripping cunt. "Ohhh, that feels so good! Harder, Jack! Ohhh, baby, do it harder!"

Jack was fucking her swiftly, his hips plunging back and forth. His fingers dug into the smooth flesh on the back of her drawn-up thighs, sending darts of delight through her. Marian turned loose of one knee and shoved her hand down behind her naked, swinging ass. She gripped her son's hairless balls tightly, twisting at them in her excitement as he fucked her.

She squirmed and tossed her naked ass about in a wild, furious, totally abandoned state of erotic ecstasy. She was no longer bashful or shy, but eager now. The desire to keep him from fucking Judy gave her the boldness she had always lacked before and she was determined to be as erotic and hungry for his cock as she possibly could. It was the only way to keep him from Judy, she felt.

"Mom," Jack was grunting hoarsely. "I don't think I can hold out much longer! I think I'm about to come, Mom!"

"Then do lt, baby!" she squinted, throwing her naked ass about vigorously. "Do it, Jack! Let it come. I want to feel you coming in me again!"

Jack thrust his cock deep, then held it there. His face screwed up with the ecstatic torture flowing through his body. Marian felt his cock lurching about inside her cunt and, just as she felt his creamy come juice splashing into her, she came, too.

"Ohhh, I'm coming too!" she squealed. "I'm coming, too, Jack! Ooo… ahhhh, yes, yes!"