FKA Twigs has reportedly warned Kristen Stewart against talking about her fiance, Robert Pattinson, in light of the interview that the "Twilight" star gave to Harper's Bazaar.

According to the report from OK! Magazine, FKA Twigs, real name Thaliah Barnett, was allegedly angry after Kristen Stewart described her sex scenes with former flame Robert Pattinson for the "Twilight" movie.

The source reportedly told the magazine, "She sent a message to Kristen to 'shut the f**k up' about Robert because she lost the right to speak about him in public 'the moment she got into that car with Rupert Sanders. It was pretty brutal."

Kristen Stewart was reported to have cheated with the "Snow White and the Huntsman" director while he was still married and she was still with Robert Pattinson.

The article claimed that Robert Pattinson poured his heart out to fiancee FKA Twigs on the whole Rupert Sanders cheating saga, and how at that time he wanted to "quit acting" as a result.

The magazine claimed that FKA Twigs has become Robert Pattinson's "fiercest defender" after they got engaged during the Coachella 2015 as the source claimed, "It will be a very long time before Kristen talks about Rob again in public."

Robert Pattinson and FKA Twigs have not confirmed the engagement reports, however.

Kristen Stewart graced the cover of Harper's Bazaar where she described the sex scenes with former beau, Robert Pattinson.

She said per Hollywood Life, "It had to be transcendent and otherworldly, inhuman, better sex than you can possibly ever imagine, and we were like, 'How do we live up to that?' It was agony. Which sucks, because I wanted it to be so good."

"I only hate [sex scenes] when they're contrived. That's when it's grotesquely uncomfortable," Kristen Stewart, who's now rumored to be dating BFF Alicia Cargile, said.