I’m having a blast when the chemistry is right with an sp especially a mature one
Just meaning. I know what kind of things you are refering to that you seem to feel emotions or a relationship get in the way of. My point is only that those very same extreme things, actually reach a whole other level than just basic fun and relief when there is a relationship involved.
Fradi's point is basically, rephrased in the kinkster relationship dynamic. What could be better than say,
The SP you have the most chemistry with so far, but not an SP. Having access and their undevided devotion to your desires, and they share in the same kinks you enjoy, you can do what you want, how you want, any day or time, and not have to pay. And in the kink world when it is agreed upon in the relationship, you can have that as well as have it be poly. A soul-mate in the deepest of terms.
But from what I gather it just isn't you anyways. You just seem interested in the kink, not so much the control. Because the control is only enhanced by the devotion of a relationship.