Most of the time in a sadomasochistic relationship, the roles of "master" and "slave" are fixed--the two participants don't swap roles. We can infer that Putin is the master and Trump is the slave because 1) Trump has a lot of power, and powerful BDSM participants usually prefer the passive role (face down! butt in the air!) and 2) Putin would never let Trump fuck him the way he fucks Trump.
But I'd like to enlist the aid of our MAGAs to supply us with details. Can Davey Pig, stupid Tom, stupid angry Charles, or Boilerboob help? They do, after all, use Trump as a role model and try to emulate him in every way.
And MAGA thinks that the two met to seriously discuss the Ukraine war! If that was true, why did Trump pack two pairs of fur-lined handcuffs and a case of lube?
(Don't forget to bleat "TDS TDS TDS" now, girls!)