Skipping a meal or two, or certain foods, makes a very big difference for me. Also, I sometimes do a quick finger inspection (which also works great for constipation). And I always half-squat or sit on a toilet for awhile before starting. I had some embarrassing and disruptive accidents before I finally figured things out. I've learned to tread lightly with douching. I find it addictive and once did ten in a row. Later in the day, at a beach, I discovered mucus running down the inside of my thighs. Sometimes, I'll just lie on my side, totally relaxed and reading or dozing, while my somewhat obsessive partner relatively cleanly explores, investigates, innovates, and operates for hours. But this is definitely only feasible if I've skipped a few meals--which helps reduce body fat, too. I like to thoroughly wash my rear end under a warm shower, but no soap. I consider this essential, when available. But I always like to remind my partner that he's now mostly in control of my circular muscle, and not me.
It might be just the thought of what might happen that makes me like that.......the feeling just crips up on me. Maybe I'm just too horny...lol