Nikkole Paulun is not impressed with Leah Messer's parenting.

Corey Simms Calls Leah Messer A 'Fake A** Mom' On 'Teen Mom 2'

On Thursday, after watching the latest episodes of Teen Mom 2 season six, the former 16 & Pregnant star took to Twitter, where she revealed her thoughts on Messer's behavior.

'Teen Mom 2' Leah Messer Spanks Daughter Aleeah: 'I've Had Enough!'

In addition to not having her children properly seated in their car seats, Messer's youngest daughter, 2-year-old Adalynn (whose father is Messer's second husband, Jeremy Calvert), was seen fighting back against a book bag that was smothering her as she and her sisters were driven to a cheerleading event.

During the scene in question, Messer's then-husband, Calvert, was seen yelling back and forth with Messer over her failure to keep their car tidy. While their car seats were certainly an issue with Paulun, as well as many viewers, it was the mess that peeved Calvert the most.

"You don't care about what this looks like?" Calvert asked Messer in the scene.

Calvert then told Messer he'd take a week off to prove to her she could do better as a parent.

"You know what? F**k you," she said in response, as her three girls sat behind her.

Teen Mom 2 season six airs Thursdays at 10 p.m. on MTV.