They say that pretty much any movie will eventually have a porn made of it. I think it pretty much follows that if there is a video game, eventually someone will make a naughty flash game of it. To prove my point, The Humplex, a sort of naughty gay anime and Flash site has already posted a very NSFW "game" featuring everyone's favorite ohmygod-his-arms are-bigger-than-his-head zombie slayer, Chris Redfield. Now I can't go in to too much detail here without having to put an age gate on this post, so i will just say that the point of the game is to make Chris "happy" although he doesn't seem to happy about your doing so.
Unfortunately for Chris he's been captured by the bad men. Fortunately, now's your chance to take advantage of him! :D
Well, I think that pretty much says it all. Click the link at your own risk!