Police said the suspect drove up to the boys in a van in the 1000-block of West 75th Street at about 6:30 p.m. and asked them if they want a ride.
The van is described as a 2000 white Chevy van with Illinois license plate AG96771.
The suspect is described as a Hispanic man, 23-27 years of age and 150-160 pounds with olive complexion.
Anyone with information is asked to contact Area South detectives at (312) 747-8271,