Sophie Price doesn't tell a lot of people who her famous sister is - but not for the reason you might think.
Up until recently, many people would have been unaware that Katie Price has a younger half-sister, who has not appeared on any of her reality shows.
During their first TV appearance together on Good Morning Britain in September last year, Katie described the siblings as "chalk and cheese" to presenter Susanna Reid.
"She's never done TV - even in my reality shows," said Katie. "No one even knew that I had a sister. Some people today told me they didn't know."
Katie jokingly claimed Sophie was "like my mother" - but she is actually 11 years younger than her reality TV star big sis.
Despite clear differences in enjoying the limelight, Katie and Sophie have an incredibly close bond and have even gone into business together with clothing line Little Pricey.
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Katie's biological father Ray left the family home when she was just four years old, then mum Amy found love again with Paul Price.
They married in 1988 and soon welcomed daughter Sophie, who Katie has admitted she was "obsessed" with when she was born.
She said: "I was obsessed with her. When my mum had her and she was asleep I'd pinch her to try and wake her up, as an excuse to hold her. I was obsessed."
The pair shared a room as kids which led to classic sibling rivalries because Sophie wanted to copy her big sister's style.
"As we got older I was getting angry with her because I'm the older sister. She nicked my shoes, my clothes, my make-up," explained Katie.
When Katie was first thrust into the public spotlight, Sophie was just six-years-old so doesn't remember a time before her sister's celebrity status.
Sadly, Katie's popularity made Sophie a target for nasty bullies during her school days.
Recalling what cruel classmates would say, she explained: "It was just girls saying nasty things when you're a teenager… You know what girls can be like."
During their sit down chat on GMB, Sophie admitted that she doesn't tell people that she has a famous sister.
"To be honest, I don't really tell a lot of people," said Sophie, before quickly adding: "Not because there's anything wrong with you, I'm just quite a private person.
"People tend to find out themselves, I don't actually say."
The History graduate tries to "keep out of it" and that Katie being in the public eye "does get really frustrating".
While Katie enjoys a glamorous lifestyle with fast cars and lavish holidays, Sophie prefers a quieter life with solo visits to museums.
She completed a bachelor of arts degree in history at the University of Chichester 2016 before taking a master's degree in European history in 2019.
Speaking in 2019 about her half-sister, Katie said: "She always loved History and she's proud of herself even though she's dyslexic."
Sophie has been an assistant press officer for BBC Children In Need for nearly four years and recruitment account manager Harry Brooks for 11 years.
In May last year, Sophie revealed that she and her partner Harry had become parents together for the first time.
The couple, who live in South East London, first "bonded over Only Fools and Horses and a chicken and mushroom pie from Forfars Bakery".
Sharing the news with her 50 thousand plus followers, the 32-year-old posted a cute snap of her newborn son, Albert.
The mum-of-one captioned the sweet shot: "We're finally home..Harry, me and our little Albert."
Katie posted an emotional tribute later that day, writing: "So proud of my sister @sophie_pricey and Harry, unfortunately, I wasn’t able to be at the hospital because of covid but were with them all the way through!
"I love you Sophie and Harry and my gorgeous nephew Albert. Welcome to the parent world and lack of sleep."
While Katie is famous for going under the knife, Sophie has not had any surgery or cosmetic procedures and has been called a "natural beauty" by her big sis.
Sophie said: "I don't think there's anything wrong with it, but personally it's not for me."
They have always stuck by each other's sides through thick and thin - with Sophie vowing to support her sister this month.
Sophie shared shots of the Instagram exchange made beneath a post about her sister's new Channel 4 series Mucky Mansion, which had mostly praise but also some cruel comments from trolls.
Sophie shared a string of clapping hands emojis to show support to her sister's efforts in turning her life around but in a reply to her comment she was accused of 'enabling' her sister's 'bad behaviour'
Under the profile, the post reads: "@sophie_pricey stop enabling your sister."
To which she shot back: "I think you mean supporting my sister...That's what families do, through good times and bad."
Sophie is appearing on tonight's final episode of Katie Price's Mucky Mansion, which airs at 9pm on Channel 4.
The three-part series documents Katie's journey to restore her abandoned Sussex pad into a homely haven.
In the last outing, Katie hands over the design of the garden room to Sophie and their mum Amy.
However, they have different tastes to Katie, so it's a gamble for all concerned as to whether they can pull it off.
Meanwhile, Katie sets out to transform her hall, determined to create a neon and pink welcome to anyone entering the Mucky Mansion.
*Katie Price's Mucky Mansion airs tonight at 9pm on Channel 4
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