Kourtney & Khloe Kardashian Rock Revenge Weight Loss As Scott Disick Misbehaves: Kim Kardashian Slams Lamar Odom

Khloe Kardashian and Kourtney Kardashian share more than first initials. The two reality TV stars have become known both for Keeping Up With The Kardashians and, in recent months particularly, having more than their share of romance woes. In addition, both Khloe and Kourtney seem to have channeled their heartbreak over break-ups into noticeable weight loss, leading many to ask how the Kardashian sisters shed those pounds so fast for revenge diet success. Read on for all the answers.

For Kourtney, splitting from Scott Disick involved even more because the couple, although never married, have three young children. And Kardashian is struggling with anxiety over having those children spend time with their dad, reported Hollywood Life.

At five, Mason now is in therapy because Kourtney, 36, was so concerned about how he was coping. In addition, Kardashian is worried that her 32-year-old supposedly “bad boy” ex is behaving like a child himself with 3-year-old Penelope and even 9-month-old Reign.

“[Kourtney’s] always calling to check on [the kids],” said an insider.

Although it worries her to give Scott the baby even for a short period, she’s even more stressed about making him angry. However, Kourtney reportedly has established guidelines that include limiting time with Mason and Penelope to weekends, with a back-at-home curfew of 8 p.m. No sleepovers are allowed.

And when he does have the children with him, Disick hardly notices them.

“Mason tells her when Daddy acts ‘mad, sad or weird,'” added the insider. “Kourtney knows it’s important that her kids see their father, but it breaks her heart to think they’ll remember Scott like this.”

Meanwhile, Disick is back to his old ways with a hot new blonde, reported Entertainment Tonight.

Three months after Kourtney and Scott split, Disick has had the blonde residing with him in NYC. They recently spent all night partying; from a nightclub until 4 a.m. to a SoHo house party, not exiting the bash until 6 a.m., at which point Scott and the bodacious blonde headed to their hotel home base again.

Taking out her anxiety, Kardashian has been working out both with her sisters and alone, shedding pounds to restore her pre-baby body, reported Hollywood Take.

“Working out becomes addicting,” posted Kourtney. “Early morning workout with my @khloekardashian aka Khlo$$$.”

In addition, Kardashian goes for walks with the littlest member of her family, works out with a trainer as well as Khloe, takes boxing lessons, and does cardio activity ranging from running to swimming. When it comes to diet, Kourtney emphasizes eating clean, with small but frequent meals to sustain her energy level.

“I also try to eat really clean and at home as much as I can,” added Kardashian.

As for her sister Khloe, that member of the Kardashian family recently signed the divorce papers with Lamar Odom, as the Inquisitr reported. Two years after they split, the duo delayed in filing their divorce papers in Las Vegas, where she and Lamar saw each other.

And since then, 31-year-old Khloe has been rocking an increasingly slim revenge body, reported Today.

Even prior to the official divorce, Kardashian had turned to celebrity personal trainer Gunnar Peterson for a fitness release. Khloe’s found it a great way to slim down while making her feel fit and fabulous.

Gunnar told People that Kardashian is dedicated to those workouts; from boxing to eating right outside the gym. All that effort has resulted in a 35-pound weight loss.

“You can’t out-train a bad diet, and you can’t out-diet a bad lifestyle. She’s made better choices when she eats. She’s been more conscious about working on sleep habits. She hydrates better.”

But according to big sister Kim Kardashian, there’s still something off about Khloe and Lamar’s relationship, reported Us Weekly.

Kim has expressed concern that Khloe has flirty fun on the phone with Odom. In a preview of Keeping Up With The Kardashians, Kim emphasized her worry that Khloe was hurt emotionally by Lamar.

“As a big sister, I’m protective. For her to just be flirting with him on the phone makes me sick to my stomach,” added Kim.

[Photo by Ethan Miller/Getty Images; Photo by Frederick M. Brown/Getty Images; Photo by Valerie Macon/Getty Images; Photo by Chris Weeks/Getty Images for Calvin Klein; Photo by Frazer Harrison/Getty Images for Esquire ]