Charlie Sheen HIV
Charlie Sheen's lawyers will fight back against the lawsuit filed against himReuters

Charlie Sheen's ex-fiancée is suing him after he failed to disclose he has the HIV virus. Scottine Ross – whose stage name is Brett Rossi – has filed a $1m (£660,000) lawsuit against her former lover, which also accuses Sheen of assault, battery and false imprisonment.

The 26-year-old claims Sheen, who once was TV's highest-paid actor, offered $10,000 to have sex with her when they first met in November 2013. It was only after becoming romantically involved that she later discovered HIV medicine in his cabinet.

The couple had planned to marry, but the engagement was called off in October last year. She also alleges Sheen forced her to have an abortion because he "did not want his child to have his blood type".

She told FOX411: "If I wanted money, I would have kept our child. If I wanted money, I would have kept quiet. I want justice."

Sheen's lawyer hit back against the lawsuit in a statement saying: "Charlie Sheen intends to vigorously defend the lawsuit filed by Scottine Ross. We are confident that Mr Sheen will prevail in this action and will prevail on his claims for affirmative relief against her."

Last month Sheen announced on the Today Show he found out he was HIV positive in 2011. He said he was honest with his subsequent lovers telling them of his condition before sleeping with them, "no exceptions".

Ross said: "If he would have told me from day one, from the first time that we met, there would have never been a relationship. I never would have been sexually active with him."

Since his revelation, a brothel madam, Anna Gristina, said she often would supply the Anger Management actor and his then-wife Brooke Mueller with sex workers at their LA home. Gristina claims Sheen would pay up to $10,000 extra to have sex without a condom and favoured 'pre-op' transsexuals. Sheen and Mueller divorced in 2011.

According to the National Enquirer, the actor paid £1.4m on prostitutes in 2013 – two years after his diagnosis.