Rob Kardashian, who has been on hiatus over his weight gain, greeted Kim Kardashian happy birthday in an Instagram post showing what seemed to be a grab of "KUWTK" episode where he's eating cheese fries.

"Happy birthday Kimburrrrr," Rob Kardashian wrote. "Thanks for always feeding me cheese fries all day baby."

"You should make your own tv show @robkardashian," one of his followers suggested. "Set up your goals in order and start by loosing weight for your first episode! I really mean it in a good way. And if you do . You should put my daughters in your tv show. They are very beautiful like your sisters.;)"

"No rob don't!! I want you to be healthy forever don't eat cheese and fries!" one fan wrote.

But another fan countered, "Eat whatever the f**k you want as long as you're healthy, you're always beautiful."

Kim Kardashian was reported to have feuded with Rob Kardashian over his weight gain.

In a previous interview with Rolling Stone magazine, as shared by ET, Kanye West's wife slammed her brother's lifestyle.

"It's not that mysterious, what's happening with Rob," Kim Kardashian said to explain Rob Kardashian's hiatus. "He has gained weight. He feels uncomfortable being on the show, and that's OK. Do I think he smokes weed, drinks beer, hangs out and plays video games with his friends all day long? Yes."

But Celebrity Dirty Laundry said that Kim Kardashian criticizing Rob Kardashian over his weight gain is ironic.

"You can't ignore the irony - Kim slammed Rob for gaining weight and fat-shamed her own brother. But, at the end of the day she was just as much an enabler as their momager Kris Jenner, and she was encouraging him to eat cheese fries 'all day every day.'" It said.

However, there's a bit of good news to the saga as Rob Kardashian already reportedly shed off about 15 pounds by strictly following his diet as well as workout plan with his trainer.