Porn Industry and before working in the porn industry, she worked at a German bakery,a Jiffy Lube and later a tax and retirement firm.
A black-haired woman wearing a yellow top and jeans sitting behind a table looking up at the camera, Leone at the 2002 Adult Entertainment Expo, one of her earliest promotional appearances. While studying to be a pediatric nurse in Orange County, a classmate who was an exotic dancer introduced Leone to John Stevens, an agent who in turn introduced her to Jay Allen, a photographer for Penthouse magazine. When picking a name for her adult career, she has said that Sunny is her real name and Leone was picked by Bob Guccione, former owner of Penthouse magazine. She posed for Penthouse magazine, and was named Penthouse Pet of the Month for the March 2001 issue, followed by a feature in the Holiday 2001 edition of Hustler magazine as a Hustler Honey. She has also appeared in other magazines including Cheri, Mystique Magazine, High Society, Swank, AVN Online, Leg World, Club International and Lowrider, while her online credits include ModFX Models, Suze Randall, Ken Marcus and Mac & Bumble. Her pictorial credits also include working with stars like Adriana Sage, Jenna Jameson, Jelena Jensen and Aria Giovanni.
In 2003, she was named "Penthouse Pet of the Year" and starred in the video Penthouse Pets in Paradise alongside Tera Patrick and Kyla Cole. In 2005 Adam & Eve appointed her as their West Coast Internet Sales Representative.