YSK: Kink requires consent. Kink where others can see it is means they are now a party to it. That means any kink you perform in a public space where others cannot consent is a violation.
from /r/YouShouldKnow
YSK: Kink需要同意。在别人可以看到的地方进行的奇异行为意味着他们现在也是其中的一方。这意味着你在别人无法同意的公共空间进行的任何奇特行为都是一种侵犯。