though, her thoughts did not go to Betty, but much farther back to the summer between her sophomore and junior years in high school.

She had gone to spend a month with her aunt and uncle, and her two cousins, Sandy and Tommy. Sandy was a year younger than she and Tommy a year older. Sandy was a pretty girl, just filling out, with long brown hair and a ready grin. Tommy was tall and handsome with no lack of dates. Although he was chronologically older that Susan, they were on the same grade level. Both would be seniors in the fall.

It had started the second evening she was there. Her aunt and uncle had gone out to play cards with friends and the three teen-agers were left alone. Tommy had a summer job and had to get up early in the morning, so went to bed early, leaving the two girls sitting up alone. They giggled and gossiped until late, telling each other the latest events in their fledgling sex lives, among other things, and Susan got the shock of her life when her demure cousin confided that she had "gone all the way" and had loved it. Susan had wanted to hear more about Sandy's experience, but they had promised to be in bed by midnight, and they did not want Sandy's parents finding them up if they came home early.

Later in the night, Susan awoke and heard strange sounds coming from Sandy's room. Her watch said it was 12:30 and she quietly got out of bed to see what was making the noise. Coming to Sandy's room, her stopped dead in her tracks as she looked in the door. Tommy was on top of his sister, his huge cock plunging in and out of Sandy's open pussy. At least, his cock seemed to Susan to be the biggest thing she had ever seen. Sandy was making little sounds as her hands pulled at Tommy's ass, urging him fur- ther and further into her. Susan watched them unseen from the darkness of the hallway, and when Tommy suddenly pulled out, her eyes widened to see him plunge his cock into Sandy's waiting mouth and knew from his shuddering body he was coming down her throat. The sight of Sandy making love to her brother excited her no end and with a little cry, she fled back to her room and plunged her hands under her nightgown to the throbbing intensity of her clitoris.

As the vibrator spread the lips of her pussy, visions of Tommy's cock filled her vision. The following day she could bear it no longer and told Sandy what she had seen. At first the girl was embarrassed and then, as Susan had questioned more and more about how it had happened, what it was like and so on, she and Sandy conspired to seduce Tommy into initiating his cousin, a task they knew would not be so difficult.....This bisexual story continues HERE