A Port Orange man was arrested on a warrant Thursday charging him with sexually molesting two girls, Port Orange police said.Shane Floyd, 28, was booked Thursday into the Volusia County Branch Jail, where he was being held Friday without bail, on two counts of lewd/lascivious molestation by a person 18 years of age or older on a victim less than 12 years of age, according to a police charging affidavit.Floyd's ex-wife contacted police in January upon learning about the sexual abuse allegations, according to the affidavit.