By far one of the best NSFW games on itch.io. Although the graphics are not amazing, the sex animations feel a bit stiff, and the voice tracks can be repetitive, this is an actual game with real gameplay. You can develop relationships, move through different buildings, take a large number of different actions in each location, and play in a huge number of varied ways.

Very much like The Sims, but with a heavy sexual component. There sheer number of sex animations is mind-boggling.

Further, it is updated regularly - 2-3 times per month, compared to once every 3-4 months for most NSFW visual novel titles.

Give it a try!