A serial masturbator was arrested on Friday after exposing himself to women at a New Jersey doctor’s office, police said.

Brian M. Bates, 47, of Spring Valley, allegedly masturbated in front of women at a Paramus doctor’s office while simultaneously using a toilet brush to pleasure himself, NJ.com reported.

“Upon police arrival, officers found Bates in the bathroom with the door open while masturbating and simultaneously attempting to penetrate his anus with the handle of the toilet bowl scrubber,” borough Police Chief Kenneth Ehrenberg said in a statement.

“This act was witnessed by several adult females who were in the office,” he added.

After being booked at police headquarters, Bates was evaluated at New Bridge Medical Center.

Bates has a history of public masturbation that goes back as far as 1997. That year, he exposed himself to a 4-year-old girl in the bathroom of Barnes & Noble. He was arrested two months later after masturbating in front of two women at a Barnes & Noble bathroom. He was arrested in 1998 after exposing himself to three children ranging in age from 8 to 11, New Jersey 101.5 reported.

After the 1998 incident, Bates pleaded guilty to fourth-degree lewdness observed by a child. He was sentenced to a year of probation.