With a sigh, she shifted her position again, parting her deliciously long legs, digging her toes into the warm sand.

"Your skin is so soft, Mom," she heard Derick say softly.

"Mmmm," she replied lazily.

"I like to feel your skin," he said as he worked his hands up and down her back.

She purred with excitement, gazing at the other young man, her eyes fixed upon the enticing bulge of his swimsuit. She wondered how big the guy's cock was, how big his balls were, if they were full, loaded. Mandy liked full balls, hot balls. She especially liked what they contained.

It had begun when she was very young, not yet a teenager…

She had been introduced to cock by her older brother, whom she had caught jacking off in the garage one afternoon. Fascinated, she had watched him, and felt no fear or embarrassment when he found her peeping at him. Her brother had continued to jack his prick, sliding his fist up and down, knowing she was watching. When he came, it took Mandy's breath away. It had excited her very much, watching his thick, white cum-load spurt high into the air, spattering back onto the garage floor.

The very next day, her brother had taken her, willingly, into his room and jacked off as she stood watching. Again, she felt a hot tingle between her thighs when he came. After that, she watched her brother jack off all the time, eventually exposing her young, pink cunt to him, at his request.

As the weeks went by, Mandy and her big brother would fondle themselves, watching each other, and it was during one of those times when she experienced her first orgasm. She had been sitting on the floor at her brother's feet, as he perched his ass on the edge of his bed, legs spread, pumping his cock and watching Mandy as she rammed her middle finger in and out of her hairless little cunt. When her brother came, his hot jism splashed over her slim thighs, and the feel of his cum on her skin had made her juicy little cunt convulse with orgasm for the first time.