Two girls eating a Quiznos Torpedo

From Carl's Jr. to Quiznos, here are the three raunchiest ads that prove that sex sells even when it's just a sandwich that you want your customers to buy.

#1. Burger King's "Wish Your Chicken Was Bigger?"

#2. Quiznos' Gay Oven

#3. Paris Hilton Spices Up the Carl's Jr Burger

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Honorable Mention: Two Girls and a Torpedo

In case you're wondering where television commercials are heading, here's a Quiznos ad parody from Playboy to give heterosexuality equal time among Torpedo lovers.

Are these ads effective in getting a rise out of sales? There must be something to them because the ad agencies keep repeating the formula of humor and sex.