I have two , safety call people . One altho my best friend , she does not know any details (yet) of my kink , but she knows where I am and I have check in times with her, she will also randomly send a " all good?" message too . The other is someone I am very close to from Zity , he knows where I am, and well being from zity he has a pretty good idea of what I may be doing or having done to me . Lol
Before meeting I have chatted with the person , not just kink but many other topics as well and gotten to know him on a personal level. I really rely on my gut instinct and listen to my intuition. If it doesnt feel right even in the tiniest way , dont do it .
I may not be fully aware of what is going to take place,but we have previously talked about what I may or may not like , what is strictly off the table , what is a maybe . I trust him that he knows me enough to push my limits but still respects my boundaries.
As far as being put in a situation like him having others come in without my prior consent or agreement I know if we never previously discussed that happening he would never do it .
While being nervous and anxious may be part of the allure in a kink situation I would never want to feel truly frightened for my life , and I would not be with a person that did not feel the same as I do .
Mutual trust is a big part of any relationship.