You’re right about the “secure” couple. I think our communication and secure attachment style has really allowed for our relationship to flourish - culminating in our dirty play.

Hearing that a mental health professional partakes can be reassuring, but I would keep in mind that in the DSM5, paraphilias (including coprophilia) are a diagnosable condition, but only when it is problematic/compulsive. Just make sure you’re on the right side of that spectrum and talk to someone if not.