All characters are 18+ in this story.
Her life carried on for a month or so and nothing troubled the strange ritual that she had established without her father knowing: him sitting on the side of his bed tugging at his dick with the hand that did not hold the magazine and her watching from the room above through a small hole in the ceiling and energetically bringing herself to orgasm on the visual and the rough pulsation of her fingers in her vagina.
Like all pleasurable experiences it carried the threat of addiction and she grew increasingly disappointed when Dad went straight to bed without giving her the peep-show she expected. She then would lay in complete darkness, her upper body in close contact with the floor and the half of her face buried against the thin layer of carpet, the smell of which she'd associated with the experience and now loved. She would raise her butt in the air and spread her legs and though it was no longer a necessity of the only angle at which she could look down the hole she preferred it this way as she'd grown accustomed to it and helped her visualize the image of the erect penis of her father which had been so unjustly denied.
Outside the room, her relationship with her father only improved. She grew everyday more fond of the man and he of his daughter for she now radiated with affection and hugged him tight and often. Their conversations grew in length and depth and his status of confident which he'd held until teenagehood was restored. She confessed near everything: how her growing curves had made her self-conscious and she now feared the looks of the boys at school, how repeating the last year of high school had isolated her and she only kept quiet the recent development of a porn addiction and the substitute she'd found to stop.
Dad would agree or disagree appropriately but would let little transpire of his own feeling except for once where he commented she was in truth a very attractive young woman and her curves were nothing to be ashamed of as god had put them in the exact right places, and that perhaps he'd grown more physically distant because of them but her recent appetite for hugs hand put an end to that.
She soon discovered that she could somewhat manipulate the frequency at which Dad masturbated before sleep by strategically changing TV channels around teenage boys movies and thus reduced the amount of nights she'd have to resort to imagination for release. This only lasted a while for her father soon grew indifferent to it and started politely requesting against the repetitive and childish entertainment. In the manner of the addict which does not recognize the amorality of their action or the vulgarity of their character, she resorted to treasures of Sioux tactics to get him to deliver.
She started with longer hugs during which she would deeply press her breasts against her father's chest and soon she took to wishing him goodnight in more revealing pajamas but she was unsure if it indeed had made a difference in the sea of other stimuli her father might have been subjected to throughout his day at work.
The precipitating event and answer to the mystery of her father's chaste evenings was given to her fortuitously one morning through an innocent school paper she'd had him signed the previous evening but which he'd left in his bedroom. She remembered right before stepping into the car and he asked her to fetch it herself in his bedroom on the nightstand.