Think he means that by "shagging" her before Hitler's intended father he would never be born. It's the make love-not-war version of kill him in the cradle.
95. A CHYOA Battle Royale. Its basically a crossover of various CHYOA stories where everyone fights each other.
That's actually a plot twist that I had in-mind. You shagged Hitler's mother, you fertilize her egg, and you come back asking if anything's changed and if there's a person called Adolf Hitler. No and yes. The timeline continues and you realize that you are Adolf Hitler's true biological father.
A middle/upper class suburban housewife learns her new neighbor is the girl who mercilessly bullied her in high school. Two possible arcs: The bullying starts again or revenge time.
97- A man born to a drug addict finds his body began producing an excess of natural hormones to compensate for the withdrawals he goes through. Now an adult he finds out that his bodily fluids are a drug to others as women become addicted to him.
101. Nurse with magical lips can heal anyone, but, she must give them a blowjob first and have them cum before they're magically cured of any illness.
102: A coven of witches live fairly normal lives as houswives and mother in an upscale neigbhorhood. They use their powers to make sure they look great, their husbands are successful and faithful, and their neighborhood is safe and friendly. But what happens when someone tries to upset the perfect world they created for themselves? Maybe a sexy vixen with a thing for married men moves into the neighborhood or gets a job at the country club or one of their husband's businsesses, or a powerful warlock or witch moves in and does not want to play nice with the neighbors....
104: A house is haunted by ghost who have died during sex. They are looking to add more souls to there eternal orgy.
Reminds me of the premise of Thorne Smith's "Topper" - a fortyish banker buys a roadster on impulse which turns out to be haunted by the ghosts of the wild young couple who were killed while driving in it. http://gutenberg.net.au/ebooks06/0600241h.html George and Marion Kerby are happy to share their spirit of fun and inflict delightful excitement into Topper's life, but but Marion turns Topper away at last. "You're not part of our club yet."
105: Couple travels around and tries their best to shag in public areas. What happens when they're caught, who knows. M̶a̶y̶b̶e̶ ̶o̶n̶e̶ ̶o̶f̶ ̶t̶h̶e̶m̶ ̶g̶e̶t̶s̶ ̶b̶i̶t̶ ̶b̶y̶ ̶a̶ ̶s̶t̶r̶a̶y̶ ̶d̶o̶g̶.̶
I quite like the idea of 28. Perhaps with them competing, and at the end of each week they are given points by some umpire/referee character for who has caused the most erotic mayhem. Possible umpire later to be revealed as maybe the succubus or whoever that gave out all these powers.
Why not make it a League of Extraordinary Gentlemen story where Mina Harker, Allan Quartermane, Nemo, the Invisible Man and Mr. Hyde do that?
106. Miss Something contestants want a unanimous vote that they should win. For some reason, the judges are all men as well, and so includes our main character. That or it's a 3rd POV. Whatever the case, beautiful and sexy women all prancing around in bikinis and sashes are hellbent on being nominated, and if the judges think more with pheromones than brains, then it should be easy getting nominated. That doesn't mean others didn't think of it either.
I see this more of a Female POV story, where it's basically a competition to sleep their way to the crown. With a sprinkling of rivalries, betrayals, broken promises, blackmail, and lots and lots of in-story slander.