OK! Exclusive: FKA Twigs Wants Kristen Stewart To Stop Talking About Robert Pattinson

Talking about an ex is uncomfortable for everyone and FKA Twigs is furious Robert Pattinson’s ex, Kristen Stewart, can’t seem to keep her fiancé’s name out of her mouth.

An insider told OKMagazine.com exclusively that FKA, real name Tahliah Debrett Barnett, is angry Rob’s Twilight co-star described her sex scenes with her former flame as “agony” and “grotesquely uncomfortable” in an interview with Harper’s Bazaar UK.

“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,’” the source told OK! exclusively. “It was pretty brutal.”

According to our insider, Rob has opened up to FKA about “that whole nightmare” when his ex cheated on him with a married man and revealed he wanted “to quit acting forever.”

Now that they’re engaged, the source said FKA is “Rob’s fiercest defender,” especially since he’s been through the ringer in the media with KStew.