Oh wow, this is already a glorious game. It's right up my alley. My chief criticism is the quicktime system for escaping grabs. From a gameplay standpoint, it's pretty cool and novel. However, from a lewd standpoint, all the different inputs are frustrating. They take up a lot of space on the screen, and they force me to pay attention to a bunch of floating buttons when I'd rather enjoy the view. I also like to struggle a little to prolong the situation before eventually losing, but to do that I have to slap around my keyboard like a monkey instead of focusing on the fun stuff.
I suppose my recommendation would be an optional toggle that lets you switch to a simple button mashing or button holding command to gradually escape, with the indicator for it being tucked away with the two bars at the bottom. A lot less clutter, and a lot less effort to keep enjoying the scene.