The man arrested for allegedly having sex with two underage girls is back in Wabash County Illinois Wednesday. Knox County authorities took 22 year old Aaron Lustfeldt into custody late Monday night. He faces charges of criminal sexual assault and aggravated criminal sexual abuse. Police say Lustfeldt engaged in sexual activity with two girls, a 13 year old and a 16 year old. The parents of the kids have also been arrested. The suspect should appear in court Thursday.