About 6pm, the woman was riding her bike through the underpass at O’Halloran Circuit in Kambah and saw the man standing with his genitals exposed.
The man grabbed the woman off her bike and placed his genitals against her mid-section, and then let her go.
The male is described as being Caucasian in appearance with light brown hair, between 170 to 180cm (5’7”-5’11”) tall and of lean build. The male spoke with an Australian accent. He was wearing a black bicycle helmet, black t-shirt and black shorts.
Police are urging anyone who may have witnessed the incident, or who may have any information that could assist police, to contact Crime Stoppers on 1800 333 000 or viawww.act.crimestoppers.com.au. Information can be provided anonymously.