OMAHA, Neb. (AP) — An Omaha woman convicted of sexually assaulting two teenage boys has been sentenced to up to 10 years in prison.

A Douglas County judge administered the sentence Monday to 40-year-old Tera Stewart. She will serve a term of three to five years for third-degree sexual assault of a child and six to 10 years for attempted first-degree sexual assault concurrently.

A defense attorney for Stewart says the abuse was “a very, very bad mistake,” and that he was disappointed with the judge’s decision not to grant her probation. He says his client had no criminal background and would have been a good probation candidate.

Court records say Stewart initiated a sexual relationship with a 14-year-old boy in October 2009. Another boy told police he became involved with Stewart in June.