A 52-year-old man is to stand trial accused of simulating sex with a mattress.
Martin Gregory Coll, of no fixed abode, is charged with committing an act outraging public decency.
It is alleged that Coll was watching pornography and simulating sex with a mattress while in a state of undress.
The charges relate to an alleged incident in the Asylum Road area of the city on August 23.
During a brief hearing at Derry Magistrates Court Coll declined to say anything in answer to the charges or to call any evidence.
Seamus Quigley, defending, accepted there is a case for his 52-year-old client to answer.
Coll was remanded in custody and will appear at the crown court for arraignment on January 5.