Jennifer grinned with enthusiasm.

She had been trying to sublimate the yearnings in her loins. Now her pussy began to steam with anticipation. She turned and went back, looking around to make sure there was no one else watching her, but not really worried because she could always claim that she was merely returning the key.

The corridor was empty. She unlocked the door to the library and went in, locking it behind her again. She giggled, feeling like a burglar or sneak thief. That feeling added to the thrill of the situation. Sexy things were almost more exciting when they were a bit naughty, or a bit risky, she thought. And if they were really naughty they would be awfully exciting. That was why she always let her imagination run away with her when she was giving herself a hand-job. She was liable to imagine the most wicked things that added spice to the act.

For instance, she liked to pretend that she was getting gang banged. Now, Jennifer never for a moment expected that she would ever be a willing party to a cluster fuck, but thinking about it was tremendously stimulating. De pending on the mood she was in, she would imagine that half a dozen lusty young men were fucking her, one right after the other, shooting their cum into her cunt in sequence while she came on each prick, in turn. Or she might really stretch her imagination to the limits and pretend that three men were screwing her at the same time. One would be in each orifice, with her nubile body buffeted between them, squirming with pleasure as those three stout pricks hosed her from all sides and she melted in creamy release. That fantasy really turned her on, but it was just that, a fantasy. It could never really happen because, although she knew that eventually she was going to get fucked, she never dreamed of taking it up the ass in actuality.