The trial begins for a 37-year-old Swedish woman accused of engaging in sexual activities with .... a skeleton.

This when police in the city of Gothenburg found a human skeleton, skulls and other bones in her apartment -- after responding to a report that a gunshot had been fired.

A court document said police also found cd's entitled "my necrophilia" and "my first experience" as well as explicit photographs of the woman with a skeleton.

The unemployed woman pleaded not guilty to charges of disturbing the peace of the dead -- saying she bought the bones for historical purposes and denied appearing in the photographs.

If convicted, she faces up to to two years in prison.