How do I get sex from the woman in the village? (Murky Vaters)

I don't seem to be able to get the sex card for woman from the village.

What are the prerequisites? I tried to talk with the peasant women both right after entering the chapter and after completing most of the quests, but in both cases it just didn't happen.

Solution 1:

Advice on how to conquer the "hearts" of the women in The Witcher can be found in the spoiler checklist at The Witcher Wiki.

Regarding the question at hand, since she asks for "something sweet"; you have to give her a sugar doll as present. Such a doll can be found throughout the game, or made for you by the local baker.

Solution 2:

It seems to be triggered by the one and only NPC at a specific time of the day. I did manage to get it and it seemed pretty random :-/