Straight-laced society girl "accidentally" (her friends take her for her birthday) goes to a sex club. Meets the owner. Owner is intrigued. She's horrified (yet aroused) to be there because of her position in society. Way too much looking over her shoulder. I wanted to smack her a lot. But owner of said club somehow gets beneath her icy surface to the hot stuff. It was good! Little exhibitionism, voyeurism, public sex... all stuff I love. Plus an HEA, and I like that.