Laura Kaye's Hearts in Darkness is one of my favorite books, with Caden one of my favorite heroes. I have since read her other works. I just finished In Service of the King. Though I'm not into vampires, I would recommend this to anyone who enjoys erotic paranormal romance. It threw me, though, because in her created vampire lore, when vampires mate they get a mark, a tattoo, as a visible sign of the spiritual connection.
I did the same thing in my novella, Mind, Body, and Spirit.
As soon as I read that, I put down my Kindle and checked the publication date. Her book came out a month after mine which means there was no way I could have copied that detail.
I had another moment of panic a month or so ago when I read Zoe Archer's Rebel. In the big, meaningful sex scene where they both realize they are meant to be together (one exists in every romance), it is from behind with some hair pulling involved. Slightly animalistic (which makes sense since Lesperance is a shifter). My final big "You are mine" scene had a very similar choreography. This bothered me a little, but not too much since, in sex, there are three basic positions and the chances of having the same sequence of events are high.
But mating tattoos? What are the chances? I really thought my story device was original. I happen to really like ink and carried that through into my story. Kaye must like it too (Caden). I just have to tell myself that great minds think alike, right? The only thing that irks is that she did it better than me. :)