Serial flasher, 30, who exposed himself to multiple lone women across busy tube network over four month-period. Train Sex Pervert gets 8 Months Jail.

A SERIAL flasher who exposed himself to women on the Tube has been jailed.

Matheus Prestes, 30, of no fixed address, pleaded guilty to eight counts of exposure at a court hearing in November 2025.

He has now been sentenced to eight months behind bars at a hearing at Inner London Crown Court.

Prestes embarked on a spree of sexual offending, targeting lone women travelling on the Bakerloo line, the jury heard.

His first reported incident took place at around 7pm on June 21, 2025, when he stepped off a Bakerloo line service at Baker Street, stood on the platform, and exposed himself while staring at a woman sat on board the train.

Only days later, on June 25, he again exposed himself and began performing a sex act in front of another woman on a southbound Bakerloo line service.

On July 6, at around 6pm, Prestes targeted another lone woman on a Bakerloo line service near Kenton.

After exposing himself on board the train, he got off, stood on the platform, and stared at her while once again performing a sex act.

Then, on August 5, he walked along a Tube carriage before he exposed himself to a woman near Lambeth North.

On October 11, he targeted three women in a day, again on Bakerloo line trains.

On each occasion he exposed himself to a lone woman and immediately got off the train.

British Transport Police (BTP) officers identified Prestes as the man responsible for the series of offences, and he was arrested.

In a police interview he admitted he offended because he “felt like doing it”, telling officers the adrenaline rush motivated his repeated behaviour.

BTP Sergeant James Ashby said: “Prestes repeatedly targeted women on the London Underground in deliberate and predatory acts.

“His behaviour was disturbing, persistent, and entirely unacceptable. It is down to these brave women reporting these incidents that we were able to piece together his spree of offending and put him behind bars.

“This sentence reflects the seriousness of his actions.

“Passengers can be reassured that we will always take reports of sexual offences seriously, act quickly to identify offenders, and work tirelessly to bring them before the courts.