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Nice arm candy, Jennie!

On Tuesday, Jennie Garth was photographed taking a stroll in Los Angeles holding hands with a tall, handsome mystery man: Photographer Noah Abrams, whom Garth is now dating, two sources confirm to Us Weekly.

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The reality star and "Beverly Hills, 90210" actress, 40, rocketed back into the spotlight last week when she unveiled her seriously slimmed-down, sexy new bod. It's a stunning bounce back for the 5-foot-5 "Little Bit Country" star, who's been dealing with her painful divorce from "Twilight" actor Peter Facinelli after 11 years (and three daughters) together.

"I've been certainly going through a transitional time in my life," she explained in a recent TV interview of her startling new look.

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As for new hunk Abrams? "She's been going on dates," one insider says of Garth, who had a flirty dinner with HGTV star Antonio Ballatore in Las Vegas back in May. "She's not looking to get into anything too serious too fast."

Adds another friend: "She's happier than ever!"

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