Farrah Abraham says she isn't invited to the wedding of fellow "Teen Mom" star Maci Bookout.
"No, I didn't receive an invite. I don't care the reason, I'm busy," Abraham said.
"[We] wouldn't want to be part [of it anyway]," Saran added. "I don't want to see two siblings getting married."
Bookout and McKinney, who share son Maverick and daughter Jayde, will reportedly marry Oct. 8 in Tallahassee, Fla., and film their wedding for "Teen Mom."
Co-star Catelynn Lowell filmed her own nuptials for the MTV series in 2015.
"[Catelynn] has given me some tips on having the camera crew and MTV be a part of it. That's been helpful. Filming is a lot of work," Bookout told Reveal UK in March.
"She's been talking to me about how to handle it, so that's been nice."
Abraham and Bookout have a fraught history and clashed on "Teen Mom" Season 5.
Bookout was concerned Abraham's appearances in pornographic videos might affect her children because of their link to "Teen Mom."
"We have zero sort of relationship besides this TV show," Bookout said in Season 5.
Abraham and Bookout came to fame on "16 & Pregnant" before starring on "Teen Mom."
The series airs Mondays at 9 p.m. ET and co-stars Lowell and Amber Portwood.