BoyInSea indicated willingness to bottom for a scene.
Sometimes it works better for me to work backwards from where I want to end up. In this case I wanted to end up with myself straddling BoyInSea on top of the cage.
I dragged MasterZ's cage to the center of the room. I had BoyInSea lean over the top of the cage, bent at the waist, arms spread to opposite corners.
We had been watching olympic waterpolo, so decided to use a slightly wet towell for a rat tail. SoundsFun, from experience with competitive swimming, was quite good at snapping it. I hadn't mastered the snapping technique, so fell back on flogger techniques.
Between beatings with various implements I would move a limb at a time. Over the course of an hour and a half I slowly rotated him into the desired position.
Once I got him into position I tied his testicles down and across the cage. A medium butt plug was added. I played with BoyInSea's cock. I got distracted for a moment and he had a wet orgasm.
I climbed on top of him on top of the cage and masturbated onto his back.