Young man from a well off family becomes a super rich man after his Uncle dies and leaves him a world-wide empire of mining operations. But he finds out that inheriting assets and keeping them may be two different things. As a rich man, he finds a lot of women are very willing to give him their all. He even gets introduced to some BDSM and decadent practices. A complete story, but I may have a couple follow-ons in mind.
The story describes the accounts of Tom after his discovery of a drug that emulates the response of the female brain to ovulation and enhances it 1000x.
It makes women horny beyond control, releases eggs, makes them pregnant even if on hormonal birth control, numbs the gag reflex and pain of deflowering, among other things.
Tom discovers slowly how to use this drug to make a living, entertain a growing harem, cuckold, and ultimately spread his genes around the world.
In 1952 a young man finds himself in charge of his uncle's beautiful Italian maid. His new ungrounded authority is ultimately challenged by a devious Nazi dominatrix.
Dave is attacked by a dog while out for his daily walk. The dog is eliminated by a strange creature that appears from nowhere. Dave is saved from bleeding to death by a pair of twin girls. Later in the hospital, Dave discovers that the girls are bonded to him. Life gets a lot more interesting from then on.