Hentai? *Frowns* No, there is no Hentain in Progress Quest, although you can encounter Succubi and Porn Elementals. But apart from that, you could almost be part of the game.
If anyone is still bored, here is a real, addictive game. The kind of game you may launch to play "during that coffee break only", before finding yourself playing it for hours on end.
Here it is.
And if you are really good, you may want to defend your country in the World Rankings for this game
here. And yes, this time it is a game you can play, unlike Progress Quest.