Well, I honestly don't know all of my area's laws on this stuff- I didn't know they existed until recently. I plan to spend a saturday in the library reviewing them.
But either way, I am 99 percent certain I live in a fairly liberal area for this kind of stuff. Keep Portland Weird, right? And what's weirder than a bunch of freaks who are into whipping each other/being whipped? (I say this totally in a sarcastic jokey sort of way, it's not mean to offend). And should I find out this is somehow illegal... well, I guess we'll be more discreet about it?