Former TOWIE star Lauren spoke out after a newspaper reported that she has been offered a six-figure sum to star on CBB when it kicks off later this summer.
It was also claimed that the tidy sum has been offered on the basis that Lauren will spill some juicy details about Mark, who is now engaged to former Coronation Street star Michelle Keegan.
However, taking to Twitter late last night, Lauren told her followers that the rumour are "not true" and branded them as "nonsense".
"Just seen a tweet that I've signed up for a show and bringing past in 2 it again! Not true once again please leave me out it #nonsense," she blasted.
Lauren then added: "I dont know why certain papers seem link me 2 past relationship all the time? It's old news. I don't care, no one cares, leave me out of it."
Last month it was revealed that Lauren is set to move to Los Angeles to focus on her showbiz career.
After selling her clothes, furniture and even electronics, Lauren tweeted: "Got sooo much 2 do and so little time!! I can't even think straight right now.. #checklist #confused #excited #terrified."
Lauren dated Mark on and off for 11 years before they split for good in August 2011. It is thought Lauren's reason behind her forthcoming move to the US is also because she is "sick of the drama".
Who would you like to see on CBB? Tell us below, as the best comment from across the website each week wins £50!