Advances in video game technology, combined with the willingness of developers to allow players to get creative with that technology, has resulted a large toolbox to work with. Which means we can expect every hot new game to get this kind of hot nude makeover. And they will be just as plentiful and readily obtainable as the multi-page NSFW results you could expect from typing "MILF" or "sad clown" into Google.
The "Machinima scene," a subculture in which people use existing graphics engines from games to turn game characters into Brazzers stars, while not new, is improving in quality by the day. Instead of merely shoddily removing clothing and inserting naughty bits like their pornfathers, today's pornographers can create and edit scenes wholesale, making what was once unthinkable into reality. We can only hope that the upcoming ToeJam & Earl sequel doesn't get too hot, as the incongruity of a generation masturbating to cartoon alien rappers who look like wiener-based sea creatures might play havoc with the space-time continuum.