The orcs have lived as slaves and low-class citizens for generations. The humans look down on them, and employ them as menial laborers and fodder in wars. The great majority of the greenskins can do nothing about this. Grakka's clan is one of the few that remain free. In spite of residing in the king's woods and hunting his game, they have been largely undetected so far. This relative peace has allowed them to concoct a scheme that will change the kingdom forever.
The king has but one heir. Princess Sophie. Whoever marries her, whoever sires children with her, will inherit the kingdom. If the princess was to give birth to half-orc children, what would then happen? Even if the king refused their right to inherit and called them bastards, a seed would be planted in the minds of the kingdom's greenskins. That is what the clan wants.
Grakka, egged on for weeks, fed herbs making her hyperpotent, wants nothing more than release. When she is pointed in Sophie's direction, what will happen is all but a certainty.
Princess Sophie contains 5000+ words of futanari monster erotica. It features a sex-starved orc dickgirl set loose in order to breed the naive, young princess Sophie, no matter the odds.