I don't find them to be necessarily a turn-on or a turn-off. The way I see it, if a lady wants one, it's her choice and as long as she's happy with it then it's fine by me.

I've never dated someone with body art though. There was one time, way back when I was in college, that my girlfriend decided to surprise me by getting a temporary one just to see my reaction. Actually, she got two of them and it was really sort of funny. She had bullseyes put on the small of her back and right between her belly button and her bush. I've gotta say, that was sort of a fun turn-on. I put in a lot of target practice that weekend.