Her Darkest Desires
"A... used one?"
"A romantic mystery," you said, showing her the front. "It's from the seventies, and is about a female detective who gets involved with the man who hires her to investigate his wife's murder. I'm hoping it's got Castle vibes."
She broke into a smile, taking the book from you and turning it over in her hands. Then she kissed you again, on her tiptoes. "Has anyone told you that you're the sweetest?" she asked.
"Not today," you smiled.