Stella McCartney was practically ready to put on her punching gloves and reconstruct Heather Mills' face after reading newspaper reports about Mills alleged claim that Paul used to hit his late wife Linda.
The fashion designer lashed out at her father Paul last weekend when the tabloids surfaced about stepmother Heather Mills' claims.
"I'm going to kill that bitch! I can't believe what she's doing! I'm going to kill her! I told you she was a bitch," she screamed. "Why did you marry her? She's been a manipulative cow from day one. The cow won't be happy until she destroys all of us - and our memories of our mother'."
Paul kept pleading with her to calm down - but she couldn't," a source told the News of the World. "She wanted to go straight to see Heather, but he said, ‘You can't go anywhere in that state'. He had to stand in front of the door and stop her. He was pleading with her. It was a heartbreaking scene."
The relationship between Stella and Heather was never exactly peachy keen from the beginning, even after Paul took the pair on a night out together in 2002.
"He was adamant they should be one big happy family - he didn't realize how wrong he could be," the insider added. "From what Stella said to friends she told her stepmum she was a money-grabbing bitch and Heather hissed at her to mind her own business.
"The upshot of a very frosty evening was, ‘You keep out of my way, I'll keep out of yours'. It broke Paul's heart."
Lets get these two in the ring and see what happens. Heather might beat Stella with her leg but Stella seems too pissed not to shred her to pieces...who's your bet on?