She briefly regretted having been the instigator of an escapade which exposed her mother's infidelity not only to herself but to her sisters as well. Though she was terribly horny she had a sense of responsibility in matters that did not concern her own pussy and she realized that Ann and Lyn might find the scene a terrible one. It was too late for recriminations, through; her sisters were crowding around her. And even as she cursed herself for having been the means of enlightening them all about their mother's behavior, she felt a strange, awful power at work within her loins, a force even more gripping than the one she had felt when she had fist fucked Doug into that premature climax.

For all her regrets, and they were genuine enough, Sue discovered that watching a couple fuck was far more exciting than reading about it or even looking at the exceedingly frank, detailed pictures in the books she borrowed from Tommy.

Her pussy throbbed and ached when she leafed through those exciting pages, to be sure, but that was nothing compared to the electricity she felt at work between her legs when she saw her mother tossing about on her bed and working her loins against that stranger's body.

Her mother's cries became even more strident as her passion mounted to a peak – Sue was the only one to realize what was happening – and her body's contortions grew more violent. The girls stole occasional peeks into the room, not daring to stand there and gape steadily, but when their mother began sobbing and heaving at her shrillest Sue pulled them away and led them back down the stairs.

She motioned for them to put their shoes back on and gather up their books, which they did, and follow her outside. They went out the back door so as to leave the house from a side opposite to the one where their mother lay. Sue deliberated for a moment and then led them down the alley to the corner farthest from their house. There they sat on a concrete bench at the bus stop and waited.