Saved by the Dragon — Vivienne Savage

Author Disclaimer: Warning moved to the top of this blurb. Strong sexual themes and adult language. If you're not comfortable with those things, skip this book. If you want a magical story with raunchy overtones, download it for free. Bundled collection available at amazon.com/dp/B0149IDQV8 

Chloe Ellis' decision to celebrate the end of a turbulent relationship sends her off for a weekend of hiking and bonding with Mother Nature. When a rainstorm strikes during a spontaneous mountain climb, she has no choice but to seek shelter - and become hopelessly lost within a dank and dismal cave system. There's one more problem: her golden-eyed, incredibly sexy rescuer isn't the average hiker. He's also a dragon.