There's no denying that the Kardashian clan is fashionable.

Kourtney and Khloe Kardashian, and Scott and Mason Disick hit the streets of L.A. today in style. Kourtney looked blue in a denim collared shirt, powder blue leather pencil skirt, and baby blue leather shoulder bag. The eldest Kardashian added a pop of print to her monochromatic outfit with cheetah-print pumps.

While the hot momma headed out to film her reality show Keeping Up with the Kardashians in Calabasas, her son Mason and boyfriend Scott shopped at Barnes & Noble for a Lego Ninjago set. Little Mason looked adorable in his shades, neon blue T-shirt, and Nike kicks. We have a feeling Kourtney chose that shirt.

Khloe, on the other hand, sported a flirty summer dress while arriving at a meeting in Studio City. Taking a cue from her sister's rule book, Khloe embraced animal print. Is it just us or does Mrs. Lamar Odom look better than ever?

Both sisters have recently lost an incredible amount of weight: Khloe dropped almost 20 pounds in the last few months and Kourtney slimmed down 44 pounds within six months of giving birth to daughter Penelope. Try keeping up with that!

We rarely see these two being lovey dovey!

Kourtney Kardashian and Scott Disick headed out to grab lunch at Stanley's in Beverly Hills this afternoon, and we were shocked to see them actually holding hands!

The mother-of-two looked super slender in a cream shorts suit, while her beau was rocking his usual preppy style.

The brunette beauty just celebrated Mother's Day with son Mason and daughter Penelope, and even though she's a bona fide reality star, motherhood is her natural calling!

"Being a mother is my favorite role in life so far. I cherish every second with my angels. The joy I get to feel every day because of them is indescribable. To all the other mothers out there, have a beautiful Mother's Day," she posted to her blog.

We hope Kimmy K enjoys having children as much as her older sister does!

Run, Kourtney. Run!

Kourtney Kardashian made a frantic dash to her car after leaving a friend's house in Calabasas yesterday. The fashion-forward designer donned workout gear, complete with sunglasses and neon orange-accented running shoes. We wonder if she's sporting MILF Arthur George socks as well.

It's hard to believe that she gave birth to Penelope less than a year ago. The Keeping Up with the Kardashians star looks slimmer than ever.

Aside from exercising regularly, the mom of two has also been keeping busy with work. In fact, she and her sisters unveiled their latest Kardashian Kollection line Saturday in Houston. The eighth season of Keeping Up premieres on June 2.

Getty Images for Sears

The Kardashians presented their new line for the Kardashian Kollection Saturday at the Willowbrook Mall Sears in Houston.

Kim, Kourtney and Khloe took to the red carpet for a photo op before signing autographs for fans. Kim Tweeted, after the event: "Thank you Houston for the amazing love!!!!" She also posted a photo of her swollen feet after wearing Givenchy cage heels for the entire event and the effects weren't pretty ...

She wrote: "Swollen feet or a new Givenchy tattoo?"

The pregnant reality star and her sisters sported slightly more dressed-down looks as they left LA for the Texas town on Friday. Click through to see those photos and video ...

Love the hair!

Kourtney Kardashian looked stunning in her white dress as she and the family were poolside in La Canada as they were getting ready to shoot scenes for their reality show on Friday.

The 33-year-old star was joined by boyfriend Scott Disick and mom Kris Jenner as they posed for photos around the crew as part of their busy filming schedule.

Guess it's just another day at the office!

She looks straight out of the Roman Empire!

While her sister Kim kept things uber colorful with her wardrobe, Kourtney Kardashian channeled her inner gladiator as she sported some strappy sandals while with family out to eat in Calabasas after church.

Looks like she's giving her little sister a run for her money!

Or is it?!

At first we thought Kourtney Kardashian got caught by a very unflattering gust of wind on Wednesday afternoon, but after checking out some profile shots of the reality TV starlet, we're not so sure.

Kourtney lost an impressive 44 pounds since giving birth to daughter Penelope last July, and in recent months she's showed off a totally flat stomach, so is there any way that baby number three is on the way and could this bambino be for sister Khloe?!

In last week's Keeping Up With the Kardashians, Kourt revealed she was considering carrying a child for Khloe and Lamar, who've been having trouble conceiving on their own. Check it out ...

The Kardashian Klan dressed in pretty Easter pastels, save matriarch Kris Jenner, who chose a brighter shade of pink to attend church today.

Kourtney brought Penelope and Mason along for the Sunday service, while Kendall and Kylie Jenner arrived with mom and dad.

The family's been Tweeting photos of their Easter swag today -- Kris got a Lanvin coffee table book and Williams-Sonoma apron and dish towels from daughter Khloe, while son Rob got Easter bunny boxers ... just what we DIDN'T want to see on Instagram (click through to see if if you just can't help yourself)!