Considering femboys are coming soon, are you exploring the idea of a shemale/futanari character? Maybe connected to breast inflation (that goes from a flat-chested femboy to a sizable bust).
Thanks, I figured that out already, but still the characters seem to sometimes move at the same pace, but they get desynchronized after a few thrusts. I don't think distance/depth have an effect on the timing of thrusts, so it seems like one charact…