A former Air Force Lieutenant will spend the next 60 days behind bars.
Douglas Oltmer pleaded guilty Monday to public lewdness.
Oltmer was accused of having sex with a 16-year-old girl at a party in 2004.
He was also charged with three counts of sexual assault of a child.
The sexual assault of a child charges will be dismissed after Oltmer serves his sentence.
Last year, Oltmer's trial ended in a hung jury.