All characters are 18+ in this story.
She was playing a more dangerous game now. She had been watching Dad masturbate from the safety of the upstairs bedroom for a long time and never had she done anything unmistakably suspicious, but yesterday she had lost touch with reality when she'd sneaked there to lap up the ejaculate from the magazine which had collected it. She had been greedy and consumed too much and if her father had had the idea to check, the resulting absence would have been hard to pin on evaporation alone. Much worse, she had panicked in fear of being thus confounded and acted foolishly and closed the magazine so that perhaps Dad would put it away without real care like last time. She would not be so careless next time, for there would undoubtfully be a next time, and would perfect the art of drinking and eating her father's expense in the sneakiest of fashion so that this could carry-on forever; or so she construed for her teenage mind was quick to extend the fortunate sleight of fate into infinity.
She did in fact repeat the experiment and stayed good to her promise of moderation for quite some time, contenting herself of witnessing Dad's ejaculation when he did it in a fashion which made the result too much of a risk to reach. But she could not help but find her own act of masturbation a whole lot more pleasurable when it was done with the taste of Dad's sperm in her mouth, for she reckoned there was something parietal in the experience which gave it an otherworldly feel and made for unsufferable comparison to it's absence. The thought to look for another man's semen did not however strike her mind and this could have been of some concern to her if it had been put to her in plain terms but she found the experience too enjoyable to question and so she never did. At no point either did she abandon the doggy position to masturbate for when she did use the hole to look down to her father's stimulation it was a necessity and when she came back from his room with her other fetish satisfied she returned to it naturally.
But as time advanced she felt the appeal of her ever growing addiction for perversion to be built upon further than the previous one and she grew greedier and over the span of three weeks she found herself leaving each time less than half of the amount of semen she started with. She relished in the feeling of carrying a discernable quantity of it in her mouth all the way to her room and through masturbation and once she opened her mouth as she climaxed to feel tendrils of viscous sperm slumping down from her palate to her tongue and flowing outwards down the corner of her lips to glide slightly down the cheek and when she composed herself and her orgasm was gone she with one slick of the tongue gathered it all again and swallowed and felt great that she had lost none of it in the carpet for she probably would have slurped it up from the fibers since the liquid felt so precious to her. She was crazed.
One evening which had no particularity to it, her dad went to bed without relief depriving her of it too and did also in the morning and that evening as well. She would watch him for long minutes in expectation until he carried on with the appropriate order of things, either turning off the light or dressing for the day depending on the hour. He did not masturbate for two days and it was only on the evening of the third he did finally do so and came once again on the magazine in generous amounts.
