A Red Bluff woman has been sentenced for carrying on an affair with an underage boy. 36-year-old Amanda Cummings was arrested by Red Bluff police after the mother of the 15-year-old boy found sexually suggestive messages between the pair. Convicted of 6 felony counts of unlawful sexual intercourse, Cummings has been sentenced to 270 days in jail and 3 years formal probation.