Sounds great!
Just one more thing though, do you think there will be more customization option in terms of dick size, and maybe the height/size of characters?
Dick size - very likely, even if not with like very detailed support in terms of animations (we'll try though). Height, as of now, a definite no, since we don't have any reliable IK systems to make different heights work in sex. Changing their "weight" to be more slinky or chubby with same height is something we thought about though, but later in development.