Climb down

You arrive to the deepest part of the cavern.
You find there a group of creepy small imps or gnomes. They offer to help you, and they say that you are not in danger, because they only abduct female humans.
However, you must pay "The price" if you want to continue.

Before you can say yes or no, they cast a spell and your clothes are gone, your body is weak and you are dressed with only nylons and gloves, like a hooker.

You try to speak and to resist, but their magic forces you to obey, and one by one, you taste all their dirty cocks with your mouth.
They start to fuck you and you endure the pain, their cocks are big for their size and you feel your ass tearing apart.
Defeated and humiliated, you are on the floor, full of their filthy, smelly cum in your mouth and ass.

The creatures are laughing, they say that you are a slut and you can pass.
You take your clothes and you run through the tunnel.

The magic here is powerful, you are humiliated with your ass burning in pain, but there is a chance to finish your quest!

You found two portals at the end of the tunnel:

One of the portals is red, and you see a continuation of the cavern with huge paintings, the other is green, and you can see a forest on the other side.