Meghan Markle's Sister Samantha Grant To Reveal More About Actress On TLC

Meghan Markle's estranged sister Samantha Grant is taking advantage of her royal romance with Prince Harry.

Since the "Suits" star started dating Prince Harry, Grant has been making headlines too as she talks about her relationship with Markle. On Tuesday, she will be spilling more secrets about the royal bride-to-be when she appears in a new TLC special, Town & Country reported.

"It was like a gift when Meghan was born because she was so full of life and personality that we became settled as a family, but we became much more lively," Grant told TLC. "We were sort of a little family, not as large as 'The Brady Bunch,' but in our minds, it was a unique, very beautiful, multicultural and interracial family beginning."

Grant first made headlines earlier this year when she threatened Prince Harry's fiancée to release a tell-all book titled "The Diary of Princess Pushy's Sister." Grant added that her half-sister might not like it.

This prompted many to believe that she would be slamming Markle in her work. A number of their relatives including Grant's mom and daughter accused her of being overly jealous of the "Horrible Bosses" star.

"She's just been overall jealous of Meghan as soon as she got famous and began taking jobs like, for example, ['Beverly Hills'] '90210.' And of course, when she got 'Suits,' that set her off," Grant's daughter Noelle Rasmussen said. "After however many years, she's just completely bashed Meghan, said the most horrible things about her to the entire family, and just been completely jealous of her."

Another source told E! News that Grant and Markle have never been closed due to their 17 years age gap. "Samantha Grant doesn't have a relationship with Meghan Markle and she never has," the source revealed. "As they were 17 years apart, they were never raised in the same house. Meghan was raised an only child by her loving parents."

As Markle and Prince Harry's relationship goes stronger, Grant's words against her half-sister have changed. In November, Grant denied that she and Markle are feuding. She also stressed that she was just misquoted by tabloids and was a victim of "mistruths." She confirmed the title of the book but explained that it's not a 'slamming tell-all.'

"The tabloids really milk that for all it's worth, so it created a divide between Meghan and I," Grant said while adding that she and Markle, "We're so normal."