An 84-year-old woman accused of attempted rape involving an 11-year-old boy in her foster care has pleaded guilty to a lesser charge after...

PORTLAND, Ore. — An 84-year-old woman accused of attempted rape involving an 11-year-old boy in her foster care has pleaded guilty to a lesser charge after confessing to having sex with the child, prosecutors said Thursday.

Georgie Audean Buoy, of The Dalles, a Columbia River town about 90 miles east of Portland, will serve 36 months in prison, said Leslie Wolf, chief deputy district attorney for Wasco County.

Buoy originally faced six separate charges but reached a plea agreement on a single charge, Wolf said.

Wolf noted that Buoy would have faced eight years in prison on the original charges but her “age and lack of prior criminal convictions had a significant impact with the resolution of this case.”

In a taped confession, Buoy admitted having sex with the boy while he was in her care in 2004, Wolf said.

“Obviously, with this case, there is going to be a lot of disbelief so we wanted to make sure people knew it was a confession,” Wolf said.

She said that Buoy was a longtime member of the community and her church, and volunteered at the county jail.

Buoy pleaded guilty Thursday to attempted sex abuse in Wasco County Circuit Court in The Dalles. She must register as a sex offender after serving her sentence at the Coffee Creek women’s prison in Wilsonville.

Buoy also must pay $5,000 to the victim, plus up to $7,500 in restitution for counseling.

Buoy will be the oldest female inmate in the Oregon corrections system, according to the Oregon Department of Corrections.

There is a 93-year-old male inmate in the system, officials said.