Ant kingdom

You are summoned to another world to be the consort of a virgin ant queen and is charged with assisting her with managing her new kingdom and producing as many children as possible. Being the consort of an ant queen you will sire an entire kingdom by getting your queen massively pregnant, being an insect she can have multiple thousands of children at once so good luck. You'll have to watch food stores, watch out for invaders, manage politics with your many many children, and of course keep the queen pregnant.

The word is mostly populated by anthropomorphic insects that are purely female, because they are purely female they summon human males from other worlds. Most insects are sterile and can't get pregnant, the ones who can get pregnant are called queens or princesses if they're a virgin. All insects are nymphomaniacs and crave sex even if they can't get pregnant. It is an extremely matriarchal society and males are seen as small, weak, and are treated like slutty teenagers. Because of their matriarchal society males are usually not taken seriously. Kingdoms going to war over a male isn't uncommon due to how rare they are. The world is strangely proportionated compared to the human world, great trees large enough to fit a kingdom inside, lakes the size of bays and oceans, mountains and cliffs that scrape the sky, and great underground caverns. With your new queen and wife you must set out to found a new kingdom and survive.