By Kat Giantis
Will it be a really silent night this Christmas for Kelly Osbourne and her big sis? So claims the London Daily Mirror, which says an ongoing cold war between the size 2 starlet, 26, and her spotlight-averse sister, Aimee, 27, has put a damper on the family's holiday festivities.
"Aimee and Kelly haven't spoken for months after an almighty row," says a source. "They've always had a challenging relationship, but this last row seems to have tipped them both over the edge."
RELATED: Kelly reveals how she lost 50 pounds
According to the paper, the siblings' supposed feud means that parents Ozzy and Sharon will have to divvy up their time on Christmas Day, the same way they allegedly did on Thanksgiving, joining Aimee in the morning and Kelly in the evening.
"It's become a nightmare situation for the whole family. Sharon's distraught about what's happened. Neither girl will back down," continues the snitch. "Kelly's been telling her friends that the family will have to get used to the fact that they just don't get on ... Hate is a strong word. But they really don't like each other."
But that's news to Kelly, who has been hanging with Miley Cyrus while filming "So Undercover" in New Orleans.
RELATED: Kelly named 'body of the year'
She took to Twitter on Sunday night to assure everyone that love is all around in the Osbourne household this holiday season.
"We are both spending Xmas together in the UK!" wrote Kelly. "I love my sister."
Fergie, Sarah Jessica Parker, and Heidi Klum all get an F on this week's Fashion Offenders.Watch Video »
Diva Double Date
Beyonce and Alicia Keys double date with their famous hubbies on today's Celebs Gone Social.Watch Video »
Where Are They?
See what the cast of "American Beauty" is up to today.Watch Video »
J.Lo's Mini Me
Jennifer Lopez shares an adorable photo of her look-alike daughter, plus more celebritots on social media on today's Celebs Gone Social.Watch Video »
Prince Harry, Jessica Alba and more stars who threw out the first pitch at baseball games.Watch Video »
Sofia Vergara poses in a revealing neon bikini while her "Modern Family" castmates hit the beach in Australia on Celebs Gone Social.Watch Video »
Like us on Facebook?
UP NEXTLOL Pics
From Crowd Ignite