She couldn't stand it.

"Shit, shit, shit!" she spat softly, getting to her feet. She pulled her robe on and started from the room.

A light at the end of the hall caught her attention. Wondering who was out of bed at this time of night, she walked toward the light. Passing Bobby's bedroom, she saw his bed was empty, and so was the bed given over to Kathy in the guestroom. Curious now, Donna began to walk quietly. The light was on in the kitchen, and she peered around the corner.

"Oh!" she gasped, quickly pressing her knuckles to her mouth to cunt the sound off.

Kathy and Bobby were in the kitchen, and Kathy was resting back on the table. She held her upper body up by her elbows, looking at Bobby. Bobby was sitting on a chair, gazing at Kathy. The little girl had her heels hooked on the edge of the table, her knees spread very wide. Donna could see the sugary pink cunt, with the blonde fuzz, and her son was staring at the girl's pussy. Kathy was whispering to Bobby, but the words weren't clear to Donna. As she watched, Kathy shoved one hand down her flat stomach and moved her fingertips slowly about the slightly puffy lips of her pussy as Bobby watched. Donna could see the excitement in her son's eyes as he leaned close, watching Kathy play with her cunt. Lowering her gaze to the front of her son's pajamas, she saw the way his cock made a tent there. He had a hard-on, she saw, the way he had had in the living room the night before.

Kathy must have said something naughty to Bobby, because Donna saw her son move his hand. Bobby gingerly touched Kathy's cunt, and the sigh of pleasure the girl made came to Donna's ears. She saw Kathy lift her hips and arch her cunt closer to Bobby as he felt her pussy. Her son's eyes were gleaming with heat, and his other hand began to press against his hard-on.

Donna knew she should say something, let them know she was there. But she also wanted to see how far they would go. Remembering what had happened in the kitchen between her and the exquisite girl, Donna felt she had no right to deny her own son the same pleasure.