An 11-year-old girl and a 14-year-old girl were harassed by pervs in two separate incidents just a few weeks apart, police said Wednesday.

The 14-year-old was riding the downtown 5 train toward 125th Street and Lexington Avenue in Harlem around 8 a.m. Monday, Sept. 16, during rush hour when a man rubbed himself on her from behind and tried to lift her skirt, police said.

The suspect fled at the East Harlem station when the young girl screamed for help, cops added.

A few weeks later, the 11-year-old girl was walking on 72nd Street at 12th Avenue in Dyker Heights, Brooklyn, around 7:30 a.m. Thursday, Oct. 3, when a man in a black Dodge pickup truck lured her over to him, police said.

When the girl walked over to the man, he revealed his private parts and began to fondle himself in front of her, cops said.

The creep then drove away southbound on 12th Avenue, cops added.