Wayne Couzens, Sarah Everard’s killer, pleaded not guilty to four charges of indecent exposure.
The 49-year-old former police officer is charged with flashing the fire in Swanley, Kent, in January and February last year.
The latest of the alleged incidents allegedly happened four days before he kidnapped Ms Everard.
Couzens, dressed in a gray sweatshirt and with a white beard, appeared at the Old Bailey via video link from Frankland Prison in Durham.
It is alleged that he “deliberately exposed his genitals with the intent that someone would see them and cause alarm and distress”.
He spoke to confirm his identity and denied the charges.
No trial date has been set yet, but further hearings will be held at the Old Bailey for three days starting November 1.
The case was sent to the Central Court of London after Couzens opted for a trial before the Crown Judge rather than a hearing before the magistrates.
Sarah Everard, 33, was murdered in March 2021 after Couzens detained and handcuffed her in south London, on the pretext of breaking lockdown rules.
Her burnt body was later found in a pond near a piece of land he owned in a forest in Kent.
In a separate case, Couzens is also appealing the life sentence that means him in prison.