Joann's voyeuristic pleasure was a surprise to her. Watching someone jacking a hard cock seemed to excite her senses maddeningly. She began to understand what thrills a peeper felt. She had to lean against the pickup, her legs were shaking so much. Her eyes became glazed as she stared at her daughter's fist beating up and down Dave's hard cock. The sounds they made intensified her excitement.

"You're getting harder, Davy!" Joann heard Judy squealing. "That means you're gonna come, don't it?"

"Yeah!" Dave grunted in reply.

"I wanna see it squirt real high!" Judy moaned, pumping her small fist faster and faster. "I wanna see it go way up!"

Joann bit into her bottom lip to hold back gasping sounds. Her eyes fixed upon the head of her son's cock, wanting to watch his come, too. Her cunt was boiling, the puffy lips feeling blistered. Her clit strained against he tightness of her panties.

Joann didn't see the way Judy squirmed her ass against the seat of the pickup. She didn't see, really, the way her son was pressing his hand into Judy's cunt. All she saw was his cock, so hard and swollen, and Judy's fist pumping excitedly.

"Ooooo, come, Davy!" Judy squealed, her head resting on her brother's chest now, watching his cock with her huge eyes, with her lips parted. She was breathing deeply, causing her sweet little tits to rise and fall inside her sleeveless blouse. "Let it come! Ooooo, make your cock squirt for me, Davy!"

Joann almost allowed her stifled gasp to escape when she heard her daughter using that word. Her cunt seemed to suck inward with a hot tightness. The word burned inside her mind as she stared through the window of the pickup truck.

Joann was not aware that her hand was pressing at her dress, shoving between her thighs. She rubbed through the dress and panties at her cunt, but Joann wasn't really aware of what she was doing. Her hips moved, jerking back and forth as she watched her daughter jacking on her son's cock. She was fucking at her hand but not realizing it.