Khloe Kardashian shocks fans as her muscles bulge through her frail arm during grueling workout inside $17M mansion

KHLOE Kardashian has hit the gym once again to show off just how much work she's putting into her body.

The 38-year-old's muscles were clearly on display during a brutal workout in a new social media clip.

In the video posted to Khloe's Instagram Stories, the star is working up a storm by pulling weights over her head.

In the clip, Khloe is wearing a tiny blue tank and tight leggings with her hair in a ponytail, as her muscles are incredibly defined with every pull.

"Me watching my babies on my baby monitor but still getting it in before the Friday craziness," the mom-of-two wrote as a caption.

The Hulu star shares a five-year-old daughter, True, and a son, eight months, whose name is not yet known, with Tristan Thompson, 32.

In the Instagram Story, Khloe also revealed that her "coach"; had "come through with the 5AM workout."

Khloe is no stranger to inviting fans to have a look at her gym workout; however, it has also led to some concern.

Previously, the TV star stirred up some worries after she showed off her shrinking butt and concave stomach inside her home gym at her $17M mansion.

In the snap, Khloe was in a skintight white sports bra, black sweatshirt, and black leggings.

"What stood out to me the most lately was the skinny-ness of her arms and around the shoulders..." one person has said of Khloe in the past.

Another would react: "Khloe looks scary skinny now! Her ribs are out!”

Some fans have blamed the Good American founder's rapid weight loss on her ex Tristan's cheating scandal.

And while there had been speculation the former couple had reconciled, Khloe has since revealed she's flying solo.

Even Khloe's big sister Kim shared their family's concern over her weight loss while on their Hulu series The Kardashians.

'VERY SKINNY'

"You look very skinny," Kim told Khloe during a previous episode of the streaming show.

"Not that I'm trying to out them but Kendall and Kylie [Jenner] did say that they were a little concerned for you because you look really skinny and I said I think she's a bit stressed."

"Kendall said it? The model? Wow," Khloe reacted at the time.

Kim, 42, responded: "I said, 'No guys, it's fine.' I said: 'You absolutely have every right to be concerned but I'm telling you, she's fine...'"

While the focus has been on her shrinking frame, some critics have accused the TV personality of undergoing cosmetic surgery- especially after new Good American photos were released.

UNDER THE KNIFE?

In the snaps, Khloe posed in a denim skirt with a cropped matching jacket on her brand's website, modeling the new release of items.

However, the reality star's belly was exposed, and users noticed a strange scarring above her belly button.

"... There are small dents in her torso from where she’s had liposuction but usually she edits them out. I assume this scar is for the same thing," a person claimed at the time.

Another suggested: "She had multiple tummy tucker surgeries which leave scar near your belly button. Perhaps it's there for similar reasons. Though she has tried photoshopping it."

"Belly buttons change after pregnancy, but also tummy tucks, liposuction..."

Khloe has not confirmed she has undergone liposuction and continues to share clips of her working out.