new to game,

[Latinotauro]

How do I remove the censor in the game?

[Husk]

Downloading and installing WickedWhims is literally all you need to do, assuming you are interested in anatomically correct nudity and sex.

If you want to get rid of the blur but do not want to see your Sims' genitals or them doing the dirty there's loads of mods that only remove the mosaic and nothing else, just Google something like "Sims 4 No Censor/Mosaic/Blur Mod"