I just want to add some additional thoughts about the hands option.
When you look down you can see your feet, part of your body (your belly) and of course the most important thing - your dick
But it would be very nice if when looking down you can see your hands both of them next to your body.
From there it would be good to have the option to interact with them - moving hands through the body of the girls (changing hands shape while moving through different body parts, just closing fingers to fit the relief, for example - shaping around the boobs, ass, hand, belly, etc) and when you interact with object (grab some object) keep the object in the hand.
Then you can add "attach to" option while keep an object in your hand (for example some vibrator) - attach to mouth, vagina etc
Or you can leave the hands in puppet mode so you can drag and drop and move them around (I think this would be easy to do).
Also it would be nice to have the option to choose the finger positions - fist, 2 fingers, 3 fingers, etc. And then have the option to interact with girls intimate parts (vagina, anus, mouth).
Those are just a suggestions which I believe will add additional realism and interactions to the already brilliant game physics.
PS - yesterday I tried 3.5 version - excellent work guys! Keep up the good work!