A private investigator, who was hired to spy on his neighbor's wife, was in for a rude awakening when he found that the person she was having sex with was his own teenage son, according to Metro.

Amber Telford, 33, was having sex with the investigator's 17-year-old son and the sexual affair was exposed in November 2014 when the private detective hired by her estranged husband caught the pair together at her dance studio in Taylorsville, Utah.

Telford, a dance teacher by profession, has been jailed after she pleaded guilty to to unlawful sexual activity with a minor. Prosecutors agreed to drop six other similar charges, as part of the plea deal. Telford was sentenced to 33 days in jail and 150 hours of community service.

Court records state that before the relationship developed, the two started flirting with each other after Telford bought the teenager clothes and even paid for him to go to Disneyland to participate in a dance competition, according to Mirror.

"She started by flirting with (the teen) and eventually began a sexual relationship with him that occurred at her home, her mother's home and also in a vehicle belonging to Amber," the court document read.

The report also states that Telford would pick up the teenager in the middle of the night and drive him to different locations to make love. The affair was discovered last November, about two months after Telford filed for divorce from her husband.