She was excited, becoming aroused. Her long clit ached with tightness, hardness, and she felt hot juices starting to slide along her inside thighs.

Tommy stared openly at her body through the dress, making no attempt to hide his hard-on, which was ready to slip from the side of his shorts. He swung one leg off the couch, and Donna's breath stopped when she saw the pink tip of her son's cock.

"Judy sits in her father's face, Mom."

"No!" Donna whispered, her eyes glazed as the round, smooth head of Tommy's cock that pushed outward, his piss-hole wide and moist. "I don't believe I want to hear."

"She said he likes it when she sits in his face, and he likes for her to wear dresses when they ride because he can see her panties and…" Tommy laughed, "Judy said she would sit in my face if I wanna."

Donna couldn't hold it in. She giggled, one hand over her mouth, her eyes staring at the swollen head of his cock.

"Look at you," she said, pointing at his cock. "You're showing, Tommy."

Tommy glanced down, then back up. "So what. You're the only one that sees it, Mom."

A tremor swept through Donna. She remained at the window, staring at her son's cock, and her fingers slowly bunched up her dress, lifting it higher. She stopped just before her cunt came into view, then she smoothed it down swiftly.

Without saying anything more, she walked out of the living room to her bedroom. There, she chose a skimpy pair of lacy panties, blue with white trim, and slipped them on. She had to adjust the crotch as best she could because her cunt was sticking out so hard, rubbing at the soft nylon.

Donna wasn't at all surprised that her son had a hard-on from looking through her thin dress, although part of the reason had to be what Judy told him. With her dress smoothed over her hips and thighs, she returned to the living room.

Tommy had lain back on the couch, his head propped on a comfortable throw pillow, watching television. She was disappointed that his cock wasn't showing.