Although Jenny knew that it was unavoidable, the Itch would eventually win. However, she also didn't want to sacrifice a beloved one or any other person for the sake of nothing but getting a bigger animalistic genital between her legs. She disliked the idea to the core, and so she wanted to avoid it at all costs.
And so she ran off into the woods in the night, when she felt like control was about to slip.
After running for about half an hour, well away from civilization, she slumped against a tree. Then the Itch slipped back into her mind. She began stroking her dick, fingering herself; all to no avail. No matter what, she couldn't stop it; the never-ending sensation and urge. If she didn't give in eventually, she'd just go insane. And then she'd end up sending another person out of the world anyway.
What hope is there? What will happen to this good willed girl? What does she come across?