A dryad

You see a sexy tree woman, a dryad. She is tall, green skin with brown bark covering parts of her body, leafy hair and brown eyes. She is naked although the bark seems to be where clothes should be you can clearly see nipples and a slit between her legs. If she has feet they are in the ground and she moves through the ground as is she is wading in water.

"I can't breathe fire If that is what worries you." you interject. you can't help getting a bit aroused by her site or perhaps it is the sweet smell in the air. "Please, I have to pass through to save my mother" you plead.

"I was concerned of fire but these woods are bard to any who beers weapons and armour unless they provide me with a favour." The Dryad replied.

"I came in here once before with no trouble despite my arms." you reply.

"That time you were in pursuit of goblins, they cut my roots, fell my trees, burn whatever they find and kill my animals. You did me a favour without even knowing it, so I permitted you. I will make your journey to your mother swift and easy if you do a different kind of favour for me now." The Dryad replied.