Relevant to age-old debates about sexualization of women in games: "Sex Sells: A collection of 73 video game ads that overtly use sex as a promotion tool" : r/GirlGamers
Explicit Sex Games Keep Getting Onto Steam [NSFW]
Moves List/FAQ Part 11 - IGN
Free Games of Sex Demos on Xbox - YouTube
Scandalous Interactive Games : kinect sex game
What are some great sex games that you can play on a browser and that does not have a virus? - Quora