CATELYNN Lowell’s younger brother Nick slammed her sibling River for making a cruel dig at her fourth pregnancy.
River claimed earlier this week that the Teen Mom OG star, 28, only got pregnant “to try to stay relevant”.
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Nick – who shares a mother, April, with Catelynn – shot back at River in a post on his Instagram Story.
The youngster raged: “Girl please. Be happy for the family for once. You’re just mad you’re not getting any cut off of it.
“Stfu and keep MY sister’s name out of your mouth.”
Nick added that he spotted River’s original post about Catelynn on a Teen Mom fan account because River “blocked” him on Instagram.
Nick and Catelynn have a strong bond, with the MTV star previously offering to adopt him if things got too tough with their mother.
Catelynn previously revealed April battled alcoholism while they were growing up and claimed she would regularly “pass out” in front of them.
Back in 2012, she said, “If my mom derails again, I will step in and adopt my brother,” and added that her husband Tyler Baltierra was on board with the idea.
Nick’s biological father is reportedly absent from his life.
Catelynn isn’t on such great terms with her other half-brother, River, who posted earlier this week: “Lol my sister got pregnant AGAIN to try and stay relevant.”
River – who stays out of the spotlight – is paralyzed and wheelchair bound and shares a father, David, with Catelynn.
Catelynn announced this week that she’s pregnant with her fourth child with Tyler.
“This rainbow was worth the storm. Baby Baltierra coming soon,” she wrote, alongside a photo of her sonogram, which revealed she is due in August.
She then announced in a gender reveal that their baby is a girl.
Catelynn shares three daughters with Tyler: 11-year-old Carly, whom they gave up for adoption, 6-year-old Novalee, and 2-year-old Vaeda.
The reality TV star confirmed the news to Celebuzz as well and said she was shocked that she got pregnant just one month after miscarrying.
She revealed: “I was definitely surprised that we got pregnant so fast with this baby! But we are so excited.”
