Some relationships are based on kink, others fall into it. Sometimes titillation happens without one's expectations to find it, sometimes it's only with thrill-seeking that one can find it.

And then there's the ones who try to write down possible fantasies involving all of them, really.

Obligatory Content Warnings:
One:Public Sex; Diapers, mentions, but no usage, of Scat; Watersports
Two:X-Ray Scanners; Cavity Search; Diapers&ABDL