The original "Hot Coffee" mod wasn't new content created by fans. It was simply a script that unlocked the hidden content already present on the physical disc. By installing a small file, players could access the mini-game, which involved rhythm-based button pressing during the act.
As the modding community grew, users sought ways to re-enable the content on newer versions of the game or fix bugs found in the original 2005 mod. The v2.1 releases generally focused on: gta san andreas hot coffee adult mod v21 for pc better