share: digg facebook twitter PHOENIX (AP) — The daughter of a county supervisor has been arrested on suspicion of sexual misconduct with the same teenage boy that her mother is accused of sexually abusing over a three-year period, police said Thursday. Rachel Katherine Brock, 21, was arrested Wednesday on three counts of sexual conduct with a minor and one count of transmitting obscene material as part of an ongoing investigation surrounding her mother, 48-year-old Susan Brock. Rachel Brock is accused of committing numerous sex acts with the teenage boy between February 2007 and August 2008, and sending him nude photos and a video of herself masturbating; none of the acts involved intercourse. Susan Brock reportedly provided the boy with cell phones, and police seized text messages reportedly recording sexual exchanges between the two. The teen told police Susan Brock would pick him up at school or home and drive him to secluded areas where they would have sexual contact in her car, although there was no intercourse, according to a court document.