It's easy to see why a woman might be attracted to the President of the United States -- the fame, the power, Air Force One. But San Francisco artist Justine Lai has taken it to a whole other level with her "Join or Die" series of paintings, which show her in coitus with the U.S. presidents in order.

Of the project, Lai says, "In Join or Die, I paint myself having sex with the Presidents of the United States in chronological order. I am interested in humanizing and demythologizing the Presidents by addressing their public legacies and private lives."

We don't know about all that fancy art talk, but we do know that the graphic oil paintings featuring Lai fellating Lincoln or getting spanked by Ulysses S. Grant are both hilarious and strangely awesome. Check out the NSFW portraits here.