Quite impressive for a two day project ! Not my cup of tea kink wise but I liked figuring out how the machine worked and I think the goblin art is real cute. I do wish there was maybe a second sprite so there was a reaction to the filling of the tank as it felt a little sterile to me as is, as well as some noise/music to make the machine feel more alive. I think the 2D and 3D assets could be made a more harmonious with either similar texturing or colors.
Overall, given your late start I understand why these elements weren't included, but I do think they would make the experience more fun. With how smooth everything ran I would have loved to see what you could have done if you had found the jam earlier ( ᵕᴗᵕ)⁾⁾