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The Witcher games definitely feature some cuddling here and there in addition to the sex. As well as relationships progressing past the first sex scene.

Also a bit of a stretch but there's an interesting thing in The Void involving Ire, the "oldest" sister. Where as you feed other sisters you more clearly see them naked, Ire instead chooses to present herself to you naked from the start. But she is a creature of Amber and Gold so she can be interpreted as expressing her colours through openness and honesty.

But here's a different observation. Games that put the player character in established relationships from the very beginning use it primarily to either kidnap or kill off the other character for story motivation. I think people might be so used to this that a game starting like that but then not doing it will feel uncanny.