truth or dare is always a nice game to get things started, one we like to play is a game called "asshole". It is originally played as a drinking game but not needed. The great thing about this game is you can make up "rules". For example "whenever a certain card is played someone has to perform a certain action" Details can be found on
www.barmeister.com along with several other games.
You may also think about stopping by a local "adult store" for games.
Have fun!