Ms Kathleen said she applied for the Miss Great Britain competition – which celebrated its 80th anniversary this year – because she “wanted something that would make her feel confident”.
She said that in 2019, following a difficult relationship breakdown, she experienced homelessness alongside her then two-year-old son.
But she managed to turn her life around after launching her camera girl business.
“I decided I wanted to do something for myself and applied for Miss Great Britain, but I was rejected because of my work,” she said.
The pageant’s criteria states that “contestants must not have posed nude or topless in any publications, websites, subscriptions”.
It adds: “There must be nothing in your background that would bring negativity towards or that would bring the Miss Great Britain competition and brand into disrepute.”
However, Ms Kathleen did enter a separate beauty pageant called Miss Glamour, and won the national title of Ms Glamour 2025.
“I’m the first cam girl pageant queen but I don’t want to be the last,” she added.