Well technically I don't wear panties so this isn't possible but generally speaking, no kissing and nipple play won't be enough to make me orgasm.

I love being in public with cum on me. It makes me feel slutty. One time I sucked off 2 guys and let them cum on my face then we went through a drive through to get food. I made sure to pay so the cashier could see me.
I used to do it at the mall a lot too. I would suck a guy off or fuck a guy in the dressing room and either let him cum in my pussy or on my face and then walk around the mall like that. I got a lot of strange looks. I don't think most people know what they're looking at but my pussy was always soaking wet.