I have a triquetra on my lower back. AKA the tramp stamp.
You know everybody bags on those but my cousin has one. She has a gorgeous lower back that scoops in and she has two dimples right above her hips on her back and it's really really gorgeous and sexy on her. I think it looks good.
I like mine a lot. I just always throw the "tramp stamp" thing out there before the tattoo haters come and try to make me feel bad about mine.
My tattoo is very symbolic and has great meaning for me personally. But, I didn't want it where it would be seen. So, that's why I picked the location.