Our favorite game we've tried so far is Cosmo's Truth or Dare. A lot of the other ones aren't kinky enough for us. We've only played as a couple so far, but playing with other couple's is a possibility in the future.
In my college dorm we used to play a drinking/light sex game that was so much fun. I wish I could remember the name. I think it had a pink cover. We played in a group and none of us (ok..maybe a few) were sexual with each other, but it was still fun. You could take it as fsr as you wanted to go.