There is a sex scene between the neighbours, but Sophia only has sex with her husband so far.
Although for me the lesbian scenes in the game, even when Sophia is spying on her daughter with her friends or when she is spying on her maid, are more exciting than the sex scenes with her husband. The hook of this game is the slow burning. The most of the games here go directly to sex, many times so fast, that they lack excitement. This game bet for the opposite, creates a huge anticipation and generates emotion even for small things, like finally seeing a kiss or nudity.
Many impatient people don't like that and put a bad review, also I guess that many regular reviews are because the updates take too long.