The excitement rumbled through her like hot liquid, slicing at her nerves and scalding her cunt. She could see those wet, pink tight lips of Kathy's cunt clinging to her son's cock as he fucked in and out. Then Kathy drew her knees up and back, holding them against her small tits, swinging her creamy little ass up and down, grinding into Bobby's cock. She made hot sounds of ecstasy as her naked little ass churned and thrashed on the table. Kathy was a blur of motion, but only from her waist down.

Donna was biting her bottom lip, confusion filling her. She didn't know what to do about this. On one hand, she wanted to stop it, but on the other she wanted to watch, finding the sight intensely exciting.

Watching the two young ones fucking was one of the most beautiful sights she had ever seen. The way her son's cock fucked in and out of that gripping cunt, the way his almost hairless balls swung back and forth, the way Kathy thrashed and tossed her sweet ass about it was all beautiful.

Donna had not realized the beauty of seeing someone fucking before. She had never been voyeuristic, although she enjoyed looking at men and boys wearing tight jeans, their cocks bulging, wondering what their pricks would feel like inside her cunt. But she was not really a peeker.

There were moist sounds coming from Kathy's cunt and Bobby's cock, the liquid sounds that only a cock fucking into a wet, hot cunt can make.

Donna was unaware that her hand was inside her robe and between her thighs. But she was aware of the steaming desire swelling through her body. The vision before her – Kathy on the table with her knees drawn back, beautiful naked ass lifted, Bobby's cock fucking in and out of that sugary cunt – filled her senses more than ever.

"Do you like it, Bobby?" she heard Kathy squealing as she banged her ass up and down. "Is it as good as I told you it would be?"