A perv groped a 5-year-old girl and exposed himself to her inside a Brooklyn laundromat this week, cops said. 

The sicko approached the girl inside Go Easy Laundry on Farragut Road near Ralph Avenue in Canarsie around 11 a.m. Tuesday, grabbed her buttocks and exposed his penis to her, authorities said. 

The creep warned the child not to say anything before he took off, police said. 

The young victim’s mother was with her at the laundromat, but cops could not confirm whether she witnessed the crime. 

The girl was not physically injured, cops said. 

Police are still looking to track down the suspect, shown in surveillance images wearing a blue long-sleeved shirt, matching shorts and white slippers.