Edward Aydin, prosecuting, said: "This is a case of sex, lies and video. The complainant in this case is an actor and director of British films.
"He was in a relationship with Ms Marcou, but then found out about a relationship with someone else she was having.
"He ended the relationship, and then received several abusive messages, calling him a bastard and a c**t.
"She had also messaged his new partner saying 'He's a c**t when it comes to girls'. While together, the pair had made a video. They were both naked having sex and you can see the victim's winkle.
"It's erect on top of Ms Marcou and going in and out."
Mr Aydin told the court the making of the video was consensual, but that the victim had asked Marcou to delete it.
He added: "He was worried it would fall into the wrong hands."
Marcou and McKenna then colluded to put the pictures from the video online, with McKenna creating a fake Facebook profile in the name of "Theresa Thorne", and uploading the pictures to the victims Facebook page.
Mr Aydin said: "There were three picture message of Ms Marcou and the victim having sex.
"Her face was covered by a purple devil emoji, his face body and winkle were clearly on display.
"The pictures then all appeared on the victims Facebook page. He has 60,000 followers, this would clearly affect him in his work."
The victim then noticed the pictures, removed them, and reported the incident to the police.
Mr Aydin told the court the two had shown little remorse, and that this was a deliberate attempt to humiliate the victim.
He said: "It was vile unsophisticated and brazen. Marcou filmed and didn't delete the pictures, and Mckenna posted it.
"This was specifically to humiliate and degrade the victim, and there has been no shame, no mea culpa.
"This form of perversion and taboo of revenge porn is a trend from our European Neighbours, but this act was two notched below eurotrash."
Both women pleaded guilty to disclosing the private photos.
Judge E Warner ordered the case to be adjourned for reports, with sentencing set for June 7 at Hammersmith Magistrates' Court.
She said: "Given the premeditated and the vindictive nature of your actions, I am satisfied this crosses the custody threshold.
"I need to decide if this is immediate or suspended."
Marcou, of Gorleston, Norfolk, and McKenna, of Stansted, Essex, admit disclosing private sexual photographs.
