How do you feel about kissing someone with pierced lips wearing those metal hoops through the lips?

So far I haven't had that experience and I'm not real sure just how I will feel about it. Just wanted to get some other opinions on how you all feel.  

Along the same lines how about getting a blowjob or DATY from someone with a tongue piercing. That, I have experienced and I have sort of mixed feelings about it. For one thing it depends on the skill of the one using the tongue stud and how they use it but for the most part it really hasn't added that much more excitement or sensation for me. It's still a great thing and an excellent sensation with or without.