Having sex and/or nudity in video games has been around for... as long as video games have been, and it's always been controversial. Sex sells, period. And when you're looking at a demographic like, say, young teen boys (and girls), they tend to flock towards nudity and sex like moths to a flame. The Playstation 2 video games on this list are the best of the sexy games available for the system.
In America and Europe it's still rare for gameplay to actually feature sex-acts or nudity as part of the game or something you can manipulate, but in Japan it's an entire sub-genre Eroge (erotic game).With the advent of CD-Rom technology the late 90's to 2000's the market was far more ripe with not only games featuring adult content, but also patches and hacks making otherwise ordinary games a bit more... adult. Below are the top games intended for adult audiences only, on the PlayStation 2.