Mom charged with leaving son, 4, in car so she could have sex

A Florida woman is charged with endangering the life of a child for allegedly leaving her 4-year-old son alone in a car so she could have sex in south suburban South Holland.

Leslie Foster, 18, of Jacksonville, Fla., was arrested in South Holland just before 2 a.m. Monday, police said.

Foster allegedly left her son in one car while she went to have sex in another car, police said.

The boy got out of the car and walked down the street knocking on doors until the resident of one home let him in and called 911, police said.

The boy was not harmed.

Foster posted bail.