The next morning, as Billy and Pamie dressed for school, Susan found Bob still in bed. She entered quietly, sitting on the edge of his bed, watching him sleep. She had dressed in a becoming house dress, low at the tits, tight at her waist, then flaring around her hips. She pressed a hand to his forehead. It woke Bob up. He grinned up at his mother, his eyes shining.

"Aren't you going to school today?" she asked softly, resting her hand on his stomach through the sheet.

"I can't, Mom," he said.

"Why not?"

"I think I'm disabled."

"Come on." She grinned at him. "There's nothing wrong with you. Get your ass out of bed."

"No, it's true," he said. "I have this stiffness."

"Where?"

He took his mother's hand and placed it on his cock. She felt it throbbing beneath the sheet, then grinned at him as she squeezed. "You do have a stiff, or should I give you a hard-on?"

"That's why I can't go to school, Mom."

She pulled the sheet down, seeing his cock standing up very hard. The head of his prick was swollen, his piss hole flaring and already dripping. She pumped a few times, saying softly: "That's easily fixed, you know. All I have to do is get on it, and, before you know it, it's gone, nice and soft and no one will ever know how hard it was."

"But it might get hard again, at school," he teased, putting his hand on her knee just under her skirt.

"I didn't think about that," she gurgled.

"Maybe you better stay home today."

He slipped his hand up her thigh, beneath her dress. Susan watched, enjoying the way he felt her up. She opened her legs when his fingers touched her panties.

"Not much to feel, is there? Just a pair of panties."

"Nice, though."

Susan looked at his cock as he rubbed at the crotch of her panties. The head was very swollen, very smooth, and the clear fuck juices excited her. She ran her fist to the base of her son's cock, then with tight fingers, drew it up. His piss hole opened wide, a copious amount of clear liquid forming there.