He had brought his niece to the picnic. He figured that since she was an only child and a latch key kid she would like the company and attention. He adored his niece. Casey was a shy 12 year old, beautiful with long blonde hair and the bluest eyes he had ever seen.

Jack watched his niece as she sat nearby licking the ice cream cone she held. She caught her uncle watching her, and she smiled at him. Slowly, purposely, she ran her tongue over the tip of the ice cream, sensuously lapping up the treat.

Jack held his breath as he watched her. He suddenly shifted in his position on the bench again. His erection throbbed badly in his crotch. Each lick she took sent throbs of lust surging through his body, and wild thoughts raced through his mind. Thoughts of what he would love to do to her. He suddenly tore his gaze away from his niece. Staring off into the distance, he took several deep breaths to calm himself.

This was not the first time his niece teased him in this way. For the past month she had teased him in a multitude of ways. At every opportunity she could get him alone she would tease him in some way: flashing her panties whenever she leaned over something, leaving the top couple of buttons on her blouse unfastened, wearing an extremely short skirt when she was at his home.

Jack loved his niece very much. His sister, her mother, was a lush: always drunk and never properly taking care of her only daughter. Jack had no idea whom the father was; his sister had gotten pregnant during one of her drinking spells.

But now, he was the one who played father and mother to lovely Casey. And evidentally Casey was growing up. A couple of times, when she stayed over at his home, she would tell him that she had watched her mother having sex with some guy she had picked up at a local bar. So, Jack suspected that she knew about sex, even at her young age.

And now she was flaunting that desirable appeal to him. Jack knew he couldn't take much more. His thinking was interrupted by a pair of arms snaking their way around his neck.

"Hi Uncle Jack!" greeted Casey. She pressed her body against his back. Jack could feel those small hard blossoming nipples pressing through his shirt.

"Casey....honey.." he said, gently pushing her off of his back. " ...you have to...stop teasing me..."

"Am not teasing you, Uncle Jack." she said, pouting sadly.Those young lips formed a sensuous pout which sent a shiver down Jack's body.

"Yes you are, honey. You don't know what the consequences would be if you keep teasing me."

"But I do, Uncle Jack." she said, smiley shyly at him. She faced her uncle. Slowly, she began to undo the top two buttons. Jacks' hands quickly shot up and gripped her hands, stopping her from further unbuttoning her blouse. He quickly looked about, seeing if anyone noticed what she was doing.

"No...you have to stop, Casey."........(cont)