Britney Spears' teenage sons, Sean and Jayden, look grown up in rare photo

• Spears and Federline's sons, Sean and Jayden, made a rare appearance on a family friend's Instagram.
• Eddie Morales, Federline's friend, posted the set of photos with a heartfelt caption about family.
• Morales also seemingly addressed criticism for his post in a later Instagram story.

Britney Spears and ex-husband Kevin Federline's kids made a rare appearance on social media, and they're looking all grown up.

The pop star's sons, Sean Preston Federline, 16, and Jayden James Federline, 15, appeared in photos posted by family friend Eddie Morales on Instagram.

"During times of grief knowing u have #family really feels worth living .. talk bout seeing my nephews when they were pods smaller then my hands now look at #life how beautiful gods work is … love you bro [Kevin Federline]," Morales wrote.

Photos of Morales with Federline and other friends are included in the post as well.

Morales seemingly addressed the influx of interest in his page after he posted images of Spears' sons in an Instagram story.

"I ain't tagging nobody, no artist, none of that," he wrote. "Stay off my page with the weirdo shit. Understand this is my page, and I post what the fuck I want. They're my nephews and my family and I'm gonna post my happiness and that's what that's called."

The story continued: "This ain't for likes and views. You ain't gotta be on my page. Don't follow me. Keep it one thousand. It's therapeutic. Save all your shit for TMZ."

Spears' children have mostly stayed out of the public eye while she battles for freedom from her conservatorship.

Last month, Spears posted a photo of her and the boys for their belated birthdays. "My boys' birthdays were last week … and unfortunately they are growing up and want to do their own things," she wrote on Instagram. "I have to ask their permission to post them because they are extremely independent little men."

People recently reported that Federline's attorney, Mark Vincent Kaplan, said that his and Spears' kids "should be able to benefit from the removal of stress from her life so that they have their mom at her best." A source close to Spears also told People that she "blames" her father for not seeing her sons "as much."

Spears previously shared on social media that although her father was removed from her conservatorship, she "still has a lot of healing to do."