01/22/2009 at 06:20 PM EST
Just a few months after giving birth, Jaime Pressly gave herself a 30th birthday present that she's quite proud of – a fit body and some toned abs.
"Lately I love my stomach," says the actress, who debuts her post-baby body on the March cover of Shape
. "After growing a human being inside me, there is nothing more incredible or sexy!"
Pressly joins Madonna
, Halle Berry
and Cameron Diaz
's list of Sexiest Bodies in Hollywood.
To get the figure she wanted, Pressly focused on eating a healthy diet and following a workout regimen that included running on the treadmill and lifting weights. Pressly, who welcomed son Dezi James
in May 2007, had set a goal to shed the 42 lbs. she gained during the pregnancy.
"That's a lot of weight for mama!" says the My Name Is Earl
star, 31. "Sure, I wanted to lose my baby weight, but I didn't want to lose my butt! I think it's sexy when women have shapely bodies."
As for her relationship with ex-fiancé Eric Cubiche, "We're going through a rough patch," says Pressly, who announced they were separating
in November. "There are no bad feelings there."
"We didn't plan a wedding, we planned a child," she adds. "[Dezi James] is the greatest thing that's happened to either one of us."
How Jaime got her bikini body back!
2006: Jaime talks about her sexy lingerie line