Hilary Duff Weight Loss: Star Strives to Lose Baby Weight with Hardcore Trainer Gabe Johns, Flaunts Skinny Jeans on Twitter [PHOTOS]

Just eight months after giving birth to adorable son Luca Cruz Comrie, actress Hilary Duff has shed the majority of her baby weight and is prepared to shimmy back into her size 26 skinny jeans! The 25-year-old former Disney star has been hard at work with hardcore L.A.-based personal trainer Gabe Johns, and it looks as if all those crunches and pushups have definitely paid off! Just moments after tweeting a pic of her "kicka##" skinny jeans, Duff was spotted out on the town with tiny tot Luca, and the "Cheaper by the Dozen" star is definitely rocking one awesome post-baby bod.

Check out Duff as she runs errands with little Luca in West Hollywood on Monday (Dec. 3) - definitely flaunting those skinny jeans on a rather rainy and dismal day!

A rep for Johns, a Los Angeles-based personal trainer and boxing instructor, claims that he started working with the new Hollywood mommy about two and half months ago. The Rep told Us Weekly, "Hilary and Gabe have been doing everything from boxing to two-a-day workouts incorporating wind sprints and jump roping in an effort to finally shed the baby weight. Hilary's been steadily dropping pounds each week."

And according to Duff (who married NHL player Mike Comrie back in August 2010), she's not the sort of celeb who relies on extreme dieting and workouts to shed some quick pounds - she'd rather take time and loss the baby weight in a healthy way. The actress recently said in a People magazine interview in October - "There are some women who look the same right after -- I think they are freaks of nature! I don't know how that happens. I'm not one of those people. It takes your body nine months to get there -- really 10 months. So I'm trying to be patient but I'm working hard. And I think now more than ever, I appreciate my body and what it's done for me."

But it looks as if the hard work is already paying off, check out this tweet and Twitpic Duff sent out on Thursday, Nov. 29:

@HilaryDuff: "Yaaaa bit##es! @gabejohns your kickin my a## and its paying off! Skinny jeans! LETS GO!"

And Duff sure is proud to rock those skinny jeans! Look at the difference already (Duff gave birth to Luca on March 20, 2012):

So what do Mstarz readers think about Duff's slimmer post-baby bod?