The hot coffee mod was first found out in Grand Theft Auto: San Andreas, and this mod is actually makes making love scenes visible, and the player can participate in them as a minigame! Rockstar Games, although pretty popular for having some explicit themes and questionable actions within the boundaries of their game, are pretty ticked off and have decided to call in their lawyers.
Rockstar had to pull their game from the shelves temporarily
Because of the legal matters around this case, Rockstar Games is using the User License Agreement and its Code of Conduct agreed by users as a justification as to why they are very uncomfortable with the mod! Red Dead Redemption 2 requires users to sign a User License Agreement when first playing the game to ensure that proper conduct is observed within the game amongst players.
The hot coffee mod was able to work in Grand Theft Auto: San Andreas
The reason why the hot coffee mod and other obscure sex mods were able to be used in Grand Theft Auto: San Andreas is because of the flexible User License Agreement back then, and boy did gamers have fun with this mod! The mod allows CJ to step inside his girlfriend's house right after a date and instead of the camera going up and down while we hear CJ doing his deed, the player gets to go inside and actually see the whole performance as well as dictate the types of positions CJ is doing.
The details get a little bit messy, so let us just say that CJ is doing what he is doing in Grand Theft Auto: San Andreas when the hot coffee mod is installed. This is not the only sex mod out there as many different mods even change the billboards to pictures of pornstars and other explicit images. Even the magazines found on the floor or on CJ's bed can be customized with other sex mods lurking.
Some modders are complaining against Rockstar Games
Modders are arguing that it is quite hypocritical that Rockstar Games can include hookers, and Red Dead Redemption 2 itself is not as clean as Rockstar Games paint it out to be. According to the complaints, modders feel that it is unfair when Rockstar Games does this, it is okay. Still, when a modder does this with even lower quality graphics gathered from pre-existing assets, it is labeled "inappropriate!"
Rockstar Games is saving their own skin
The damage done by the hot coffee mod in Grand Theft Auto: San Andreas had a negative effect on Rockstar Games' identity which is why they are trying to make things right with Red Dead Redemption 2 because according to them, there is a thin line between what is okay in entertainment and what is definitely not okay.
According to Rockstar Games, Modders have violated the User License Agreement and Code of Conduct in Red Dead Redemption 2 that is why they are pursuing legal action.