Interestingly, the "pee tape" as described doesn't really even depict the typical self humiliation-oriented urination kink. The allegation is that Trump hired five prostitutes to pee on a bed, not one that he was in or using but one that Obama had used years earlier.
It's unclear to me whether that even counts as a kink: if it's true, I'm not sure Trump was getting a sexual thrill out of it. My guess is that it's more of an unchecked mental illness, with Trump as Captain Ahab chasing after his great white whale.