Ran across this act by accident last night. "The Soap Girls"
The one girl seems to get topless all the time on stage while the other does not....at least from what I've found anyway. Some times they just wear body paint as shirts.
youtube.com/watch?v=NmwyA-7VuPE
youtube.com/watch?v=BxHLKNNDIwQ
This one's nice cause she's wearing some very revealing panties...see around 1 minute in and throughout
youtube.com/watch?v=DVrdUzGQOus