The Flesh Pit Caverns is an “optional addition” to the settings of my erotic multiverse. Whether it is actually present on a physical world, or if it’s just another hyper-sexual pocket dimension, the end result is largely the same.
The Flesh Pit Caverns are a massive subterranean territory made not of earth and stone, but seemingly of human flesh and blood. More specifically, much of the cavern system’s texture resembles a vaginal passage: pink, flexible, sometimes ridged or smooth, almost always moist with fluid, though there are some dry spots. Streams and ponds of viscous sexual fluids, which drip or flow from various glands, are the main source of this fluid, and lend the entire cave system its humid, musky atmosphere. The air is always well oxygenated, and thus safe to breathe, but always has the smell of a healthy vaginal musk. There is always a very faint flow of air through the caverns, drifting slowly one way, then the other, as if the cavern system itself is shallowly breathing. Moreover, if a person stands very still, or lays down fully on the ground, they will be able to feel a faint pulse in the flesh beneath them.