Misty's pussy pulsated with wet heat, and she wondered if her son could see it twitch in her panties. As he looked up her legs, she looked steadily at his cock making a tent in his shorts.

"Billy, have you ever had a piece of ass?"

"A piece of…" He giggled. "No, Mom." She smiled, satisfied with his reply.

"It must be miserable for you," she said softly. "All those delicious girls, showing those pretty little asses and legs, and not being able to get one, huh?"

Billy nodded, making a wet sound as he swallowed.

Misty was swinging her legs open and closed now, making soft fleshy sounds as her thighs met the band of her panties flashed, then disappeared, flashed again. She kept her eyes on his hard-on, her fingers curling tightly together on her stomach.

"Am I exciting you, darling?" she purred throatily.

Billy nodded his head vigorously.

"Do you wish you could see girls do this?" Again he nodded, licking his lips again, his eyes burning with desire.

Misty flung her legs wide, and lifted her ass, pushing her pantied cunt into the air, then made grinding motions as if she were fucking. Her eyes smoldered. Her hands moved down her hips, caressing her thighs as Billy gulped softly, mesmerized by her. Dragging a finger up her inner thigh, Misty teased by sliding it into the crotch of her panties, lifting them slightly. She mewled as the heat increased in her body. Suddenly, she jerked the crotch of her panties to one side, giving her son a brief peek at her cunt. It was fast, but Billy had seen the wet slit of her pussy.

"Mom, don't do that!" he gasped.

"I thought you would like it," she purred. "I do, Mom! But… you're gonna make me come again!"

"Mmmmm, that would be wonderful," she murmured with a thick voice.