But he didn't fuck her at the end......
If you're the one playing the game (and not just watching a video of someone else doing it), then the final outcome depends on your decisions.
(Note : it's actually a decision tree, but the formatting here doesn't allow presentation to convey an accurate picture)
If Geralt agrees to do a task: on meeting
Geralt, who she'd never heard of, she demanded he complete a task before she'd fight him to show he was worthy. After Geralt completed it, he returned to fight her.
If Geralt does the laid out task but doesn't fight: however, the
witcher had a change of heart and chose not to fight her. Insulting Skellige custom, Jutta then refused to fight him in the future.
If Geralt fights but loses or cheats: Jutta defeated Geralt and was annoyed at the fact that even the witcher couldn't defeat her and went back to trying to find another worthy opponent.
If Geralt fights, wins, but turns her down: The two dueled and Geralt eventually bested her. Impressed, she invited Geralt back to her hut at night to "talk". However, the witcher turned her down. Jutta then wished him luck on the path and the two parted ways.
If Geralt fights, wins, and meets her later: The two dueled and Geralt eventually bested her. Impressed, she invited Geralt back to her hut at night to "talk" and the witcher took her up on the offer, meeting her later at her hut. She eventually revealed she had a hard time talking to men as she mostly just fought against them and never really conversed, before revealing her vow to Freya and it must have been a cruel trick that the one to best her would be sterile.
If Geralt decides to just talk: while Jutta wanted more, she was ok with talking with Geralt, and agreed it was time she left Faroe to look for more opponents elsewhere.
If Geralt takes up her offer to sleep together: while Geralt couldn't help with the husband or children part, Jutta gladly accepted the other part and the two slept together that night.
Source : one of the Witcher3 wikis... there are multiple Wikis out there for each and all AAA games, eg. Cyberpunk 2077.
https://witcher.fandom.com/wiki/Jutta_an_Dimun
