Barbara, unaware that her son was watching, sighed with pleasure, her ass moving up and down, fucking at her finger.

The wet sounds of finger fucking came to Bobby's ears. His cock surged inside his pants, his balls swelling. His knees trembled with excitement. He felt as if he would come off in his pants, but the feeling was so good, he didn't care if he did. His excitement was enormous as he stood watching his mother. He had never seen anything like it. He had never seen a cunt before – not with all that hair around it. He had peeked when Cindy pissed, but Cindy didn't have hair on her cunt.

Barbara, deep into her erotic reverie, began to twist back and forth while her finger moved in and out of her cunt. She was making soft sounds, moaning and whimpering. Her cunt was very wet, gripping at her finger. Her breathing started to come in hot gasps as she built her excitement by touching and stroking her slender body.

Bobby was holding his breath, afraid to make a sound, afraid to be caught by his mother. His cock was harder than ever, throbbing inside his pants. He pressed his palm against it and almost came. Jerking his hand away, he braced himself against the door, his eyes glassy as he watched his mother finger fucking herself.

Barbara began to pant heavily, driving her finger in and out of her cunt faster. She bounced her ass up and down, twisting and grinding. Jerking her finger from her pussy, she began patting it with her palm. Moist slapping sounds came to Bobby's ears. Barbara rammed a finger into her twat, thrusting deeply a few times, only to start slapping gently again. As her ass danced about in churning pleasure, she clawed one of her tits out of her dress.

Bobby almost choked with pleasure. He saw the creamy shape of her tit, the swollen nipple, light brown in color. He watched his mother pinch her nipple, then twist at it, pull it, stretching it. All the time she alternated patting her cunt and fucking it with a stiff finger.