Julie was sucking up and down on his cock now, making wet sounds. Carol stared at the way her sister's lips stretched so tightly around that hardness, sucking up until it almost came out of her mouth, then diving down again, swallowing it completely. She noticed Julie had thrust her ass into the air now, waving it from side to side, and she heard the whimpers of joy coming from her, too.

Julie lifted her mouth, kissed the head of her son's cock, and asked in a husky voice. "Do you like it?"

"Oh, Mom, it sure feels better than being jacked off!" Bobby grunted.

"Mamma, I know," Julie agreed. "I'd rather suck it off than jack it off, too."

"What if I have to come, Mom?"

"Oh, yes!" Julie gurgled. "Come all you want to, baby."

"In your mouth?" Bobby asked, his eyes wide. "It's okay if I come in your mouth, Mom?"

"Bobby," Julie said in her throaty voice, pulling at his young balls, "I wouldn't suck your cock if I didn't want you to come off in my mouth."

"I can come in your mouth?"

"You damn well better!" Julie giggled.

Carol's mind was reeling. It was the most erotic thing she had ever experienced! The very fact that it was a mother getting ready to fuck her son's cock off was exciting enough but it was even more thrilling because it was her sister and nephew.

Julie twisted her wet, long tongue about her son's cock again, whimpering softly as she tasted it. Her eyes flashed and with a hungry growl as she sucked her son's cock deeply into her mouth once more.

Carol watched with boiling, misty eyes as her sister ran her lips up and down Bobby's hard cock swiftly, from the very base to the swollen head. She saw her nephew twisting his naked ass on the bed, staring at his mother's mouth.

She also saw Julie's uplifted ass trembling with cock-sucking pleasure and listened to her wet sounds of ecstasy.

Bobby was trying hard not to move, fascinated by watching his mother bob her lovely face up and down, her lips burning hit cock, her tongue licking.