Should you ever find yourself in a situation in which knowledge pertaining to the arousal triggers of the former Italian prime minister would come in handy, whether it's bar trivia night or one of his bunga bunga parties, try and remember that Silvio likes (underage prostitutes dressed as):
3. President Obama
One of the young women who attended Silvio Berlusconi's "bunga bunga" parties told a court on Friday that she dressed up as a burlesque version of U.S. President Barack Obama to entertain the former Italian prime minister. In testimony during a trial against the 75-year-old Berlusconi on charges of paying for sex with an underage prostitute, Marysthell Polanco said she had also dressed as prosecutor Ilda Boccassini. Boccassini, known as "Ilda the Red" because of her hair color and what Berlusconi says is her communist political sympathies, is one of the prosecutors in the ongoing trial. "I dressed up as Boccassini with a toga to make him laugh, and also as Obama," Polanco told the court...Previous witnesses who attended his parties painted a more sordid picture, including nudity, mimicked sex, and one described two women wearing nasty versions of nuns' habits performing a raunchy pole dance.
Hope this helps.