Some of the best sexual drinking games can be done either in an intimate setting with only you and your girlfriend or you can make it a party and have multiple people. The ten most commonly played sexual drinking games are:

1. Nine cans of beer or the floor. In this game you will need about nine cans of beer per person, (NOTE: not everyone will finish this game) a shot glass and a time keeper. Every minute for 100 minutes you take a shot of beer. At first that may seem easy enough but when you add it up it comes out to about nine beers in just over an hour and a half. If you choose to not take a shot you do have an alternative. You may remove one article of clothing to be decided upon by a fellow player of your choice. This game is best played with people you trust as you may experience sever drunkeness or nudeness fairly quickly.
2. Chutes and ladders. Yes even a simple children’s game is no longer safe. This game is very simple. Chose the shot of your choice. When you go up a ladder you take a shot, when you go down a chute you take off an article of clothing of your choice. 
3. Flip Sip or Strip. This game is best played with at least three people. The first player flips a coin and calls heads or tells while it is in the air, if they call it correctly they pass the coin to the right and they are safe. If they call the coin incorrectly then they must choose either sip (take a shot) or strip (remove one article of clothing). The only catch is that you can not pick sip or strip more than two times in a row.