In the Khendovir Chronicles: Rinets Quest game, you play siblings Zack and Diana, who go on to become Rinets. They can warp reality and end up fighting all kinds of bad guys. These two do a whole lot more than fighting. They might be brother and sister, but they sure do love sex. They have all kinds of wild sex while fighting the bad guys. It's a delicate juggling act, but if anyone can do it, then it would be them.