How I come up with titles

With this series, I really struggled to come up with a good theme for the titles.  Since the genre is generally erotic romance, I wanted to come up with something fun yet catchy and easy to remember.  After researching dozens of other authors who had great success with themes, I finally came up with something unique. 

When I started putting together story ideas, I had also just finished completing a course on Occupational Health & Safety, and, I thought to myself, why not do themes based around hazard warning signs?

It's kind of kinky, in a way, because heck, let's face it, sometimes sex can be hazardous ;)  Depending on what you're into, that is.  Some of the content in my books can be considered dangerous...so I titled the first one in the series Proceed with Caution , keeping it cleaner and less obvious.  The second, of course, is Enter at Your Own Risk ....a little more obvious that it's erotic romance.  The third one is called Handle with Care , and, of course, you can't do hazard warning sign themed titles in the erotic romance genre without using Slippery When Wet , which is the title of the fourth in the series.  

I haven't come up with a title for the fifth one yet...at the time of this blog, the fourth in the series is just in production.  But stay tuned...I'm sure I'll come up with a quirky one that hits the nail on the head!

​Any suggestions? lol....