Kate Gosselin celebrates 4 of her sextuplets on their 20th birthday — and snubs the other 2

The Gosselin sextuplets are no longer teenagers!

Kate Gosselin shared a rare photo of four of her and ex Jon Gosselin’s six youngest children via Instagram on May 12, two days after they turned 20.

Alexis, Aaden, Leah and Joel all posed together in front of their birthday cake in the picture.

“No more teenagers in this house!” Kate, 49, wrote in her caption. “Happy 20th birthday, my forever babies! I love you! Who feels old? I know I do! #20yearsold #ItsaPICKLE

.”

Kate didn’t include her two other sextuplets, Hannah and Collin, in the birthday tribute.

Kate and Jon, 47, also share twin daughters Mady and Cara, 23.

Jon is estranged from the twins, as well as Aaden, Joel, Alexis and Leah, but maintains a close bond with Collin and Hannah.

Kate, meanwhile, does not have a relationship with Collin and Hannah.

Last year, Jon told “Entertainment Tonight” that he hasn’t spoken to Aaden, Joel, Alexis and Leah “for five years.”

“At this point, they’re adults now. So, I mean, I don’t even know their phone numbers or stuff,” Jon said. “Hannah went down there and talked to them … I’ve kind of just stuck with the kids that live here.”

Collin — who enlisted in the US Marine Corps after high school — addressed the family rift in a bombshell interview on Vice TV’s “Dark Side of the 2000s” that aired last year.

He claimed he became estranged from Kate after she sent him to live in a behavioral institution when he was just 12 years old, because he allegedly had “special needs.” He also accused his mother of being “abusive.”

Hannah and Jon both supported Collin’s accusations about Kate.

After the doc came out, Kate released a statement claiming that Collin received “multiple psychiatric diagnoses” and exhibited “violent behavior” before their estrangement.

“I have never wanted to have to do this, but I feel I have been backed into a corner and left with no choice,” the former “Jon & Kate Plus 8” star told People. “Although it saddens me to do so, I need to speak out now.”

“My son Collin, whom I love with all my heart, has received multiple psychiatric diagnoses over the years,” Kate’s statement continued. “For the safety of myself, his brothers and sisters and for his own well-being, he was placed in a facility following years of outpatient treatment which proved insufficient for his needs.”

Jon responded to Kate’s “brand-new false accusations” in a statement of his own, and claimed that his ex wife was “unable to control her abusive words towards” Collin, whom she allegedly hasn’t seen since he was in sixth grade.

“At this point, Collin is training to be a Marine in order to serve his country and is unable to respond to his mother’s callous lies,” Jon added in his statement from last year.

Jon and Kate were married for 10 years until they divorced in late 2009.

“Jon & Kate Plus 8″ aired on TLC from 2007 to 2009. After the couple’s divorce, the series turned into “Kate Plus 8” in 2010, which ran until 2017.