After downloading and installing a modification to the game — one of many “mods” available on Web sites maintained by videogame enthusiasts — a new world opens up in which the girlfriends appear nude and engage in explicit sex acts, according the mod’s author.
The new content fills in what publisher Rockstar Games left to the imagination in the rated M (Mature) version sold in stores. Sexual content of this kind generally earns videogames an AO (Adults Only) rating, which very few retailers are willing to sell.
In my opinion, who cares if this is a hidden ‘locked’ feature. Kids who play the game, still have to ‘unlock’ it to see it. If they have to go through the effort to see it, they could even easier go through the efforts of seeing an adult website. Check out the article at SF Gate.