Speaking at a press conference last week, the former glamour model shocked journalists into silence with her revelation, claims Now magazine.
© WENN / Zibi/WENN.com
© Rex Features
When asked to declare the rudest thing she had ever done, Price is quoted as replying: "I f**ked Alex up the arse with a vodka bottle."
The 34-year-old reality TV star was promoting her upcoming romantic novel In The Name Of Love.
Since separating from Reid in January 2011, Price has launched a number of scathing attacks on her ex, branding him a "tranny" in an interview published last month.
Katie Price has been engaged to Argentinian model Leandro Penna since April.
Cagefighter Reid is also engaged to Big Brother star Chantelle Houghton. The couple welcomed a baby girl ten days ago.
> Katie Price's ex lovers and reality TV: A history - video
Photo gallery - Katie Price rides into her book launch last week:
