Wow, you've put a lot of thought into how this all comes together. The girl has reactions for all sorts of situations, and the game does a good job of adapting all of the limbs to whatever position the player sets. She's a person with a range of emotions and expressions and not just a doll for the players to pose.
The models and lighting look great and fit the setting. I like the simple but effective background, it's not too empty to feel fake or too full to distract the players. The audio is fitting and reflects what's happening on the screen well.
Camera and action controls all felt good, which is incredible for this type of game given how quickly it was made! There are some instances of tentacles being stubborn, but overall it plays quite well.
The dialogue and story progression are excellent additions that take this game more into the realm of interactive fiction that a sex sim. This could potentially make for a good VR experience if that's something you want to try.
Very nicely done!