Naturally, the characters in this story are of legal age and (mostly) fictitious! I wrote it to be continued if the feedback is positive! Let me know what you think!
About a week ago David spied his youngest sister and a sexy friend of hers on her bed in a sixty nine position. He had arrived to the peephole just as they were finishing sucking and finger fucking each other and so soon after he retreated so they could dress and take a quick swim in the pool together. Naturally, he masturbated in his room and then sat in the backyard to watch them play and tan together. He had got some play from the sexy young ladies his sisters brought home, but mostly he was content to watch their wet, nubile forms. He had caught his older sister in precarious positions too, such as rummaging through their father's porn collection and fingering herself. And he had even seen Dad grope the girls when they wandered the house in loose towels, their delicate naked boobs often hanging out immodestly as they searched for clean clothes after showering. Still, David never had the courage to do more than peep on his sisters and the cute friends they brought over for sleep-overs and pool parties. He most certainly had never suspected that Dad was actually fucking the youngest of his children, petite Jessica.
Tonight, however, as he was masturbating to some porn he had downloaded, David overheard the creak of the old floors in the upstairs hallway as if someone was creeping along slowly. He imagined it must be one of the girls but couldn't be certain. After all, the television in the master bedroom was still on and Mom was out of town for the week. David knew Dad liked looking at and occasionally touching his daughters' young naked forms and the girls were known to pleasure themselves. The fact that Jessica had a dildo, though she turned eighteen just a few months ago, was anything but a secret to the family. For David, seeing her insert the fat rubber tool into her tight cunt was always enough to send him away hard and wanking, as was undoubtedly the case for Dad too.
David approached his own closed door and listened for the soft footfalls to end. Seconds later, he heard a door at the far end of the hall, either Jessica's or the bathroom, open and close. David opened his door slowly and peered out in the darkness. As he suspected, the only light filtering into the hall came from the loose doorframe of insatiable Jessica's room. Whatever was going on, she was involved and David wanted to watch. He crept along near silently having already plotted which parts of the floor creaked and which did not. After he was about half way down the hall he heard music begin playing in Jessica's room. It wasn't noisy. It was probably meant to cover up the sighs and soft moans she made while fucking herself.
He approached her door carefully, peering in through the cracks in the doorframe, which gave almost a complete vantage into the room. He saw Jessica at the far end of the room, showing off her tight ass while leaning over the stereo system and adjusting the music and volume. She was dressed in black boxer bottoms and a pink sport bra and her short black hair appeared damp from a recent shower. She turned slowly to face the other end of the room and the door. She smiled seductively and began to sway and grind her hips to the heavy beat. David scanned her petite five foot frame from head to toe, noticing her seductive movements and her hardened nipples. He had always thought her small, pale nipples were second only to Amanda, second youngest of family, whose were large and pale. Jessica's a-cup boobs strained against the undersized sport bra, creating a slight bulge of fleshy mound to be revealed. She looked intoxicating. And she was putting on quite the show. Thoughts of the porn David had been perusing vacated his mind; his only thought now being of his sexually precocious sister, Jessica.
"Daddy, are you ready?", Jessica said, her voice barely audible over the music. She flashed another seductive smile.
Daddy? David was almost floored, his heart rate quickening yet again. He was actually in disbelief of what he thought she had said!