The reality star announced the news via Twitter last night, telling followers: "I've had my sex change in Rio with Dr Marcio Littleton. I now have a beautiful vagina with pleasure, depth, elasticity and normal humidity."
Brazilian-born Rebekah appeared on the tenth series of Big Brother as male Rodrigo Lopes back in 2009, but has been living as a woman for the past two years.
After making her announcement - and sharing a beautiful photograph - she was inundated with messages of support from fans, wishing her well for the future. Among those sending tweets was Big Brother announcer Marcus Bentley who wrote: "Congratulations on your gorgeousness."
Rebekah replied: "My favourite voice of all times – thank you!"
Later, Rebekah addressed everyone who had sent her messages, saying: "Thank you so much UK for the lovely messages. It's not easy to be born a transsexual. It's not easy to be a transsexual."
She added: "I want to help others. I'll keep fighting for my dreams. Getting married and adopt a child. I'll have so much love to give to my family and we'll be happy forever."
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