Seeing Bobby stab his linger into Kathy's cunt, Donna felt her own pussy start to steam. She could see the way those sweet, pink cunt lips closed about her son's finger as he fucked his finger in and out, and Kathy twisted her little ass about with delight, her blue eyes glassy as she looked between her thighs at Bobby. Then Kathy, with her ass lifted off the table, began to twist and churn her crotch while Bobby finger-fucked her. She threw her head back, her eyes closed, humping up and down. She made loud gurgling sounds of ecstasy, which Donna could hear.

Then a low wail came from Kathy.

Donna saw her small body shudder and knew Kathy was coming, her cunt gripping Bobby's finger wetly. It seemed to be a long drawn-out orgasm because Kathy's hips churned up and down for some time, and Bobby kept fucking his finger in and out of that succulent cunt.

Finally, Kathy lowered her small ass to the table, and Bobby pulled his finger free. His cock was very hard, and Donna saw his prick now sticking up through the fly of his pajamas. The cock head was swollen, looking moist. She felt drawn to her son's cock, her eyes blazing hotly at his prick.

"You wanna do it to me now?" she heard Kathy say. "You can do it to me now if you really want to, Bobby."

"Really?" Donna heard her son say.

"I told you so, didn't I?" Kathy came back.

"Didn't I tell you we could do it if I stayed here?"

Donna's son stood up, his cock jutting out. Donna stared at it, licking her lips, feeling a strange excitement, sensing a need to walk into the room with them. But she remained where she was, concealed around the corner, peering at them.

"It's best if you take your pants off," Kathy said, spreading her legs very wide on the table. "That way you can feel it better."