The son of sex research pioneer Dr. William H. Masters faces a court hearing on a charge that he exposed himself to a sheriff's deputy and another woman on a Michigan river.

Huron County Prosecutor Timothy Rutkowski says he doesn't expect William H. Masters III to be present for Thursday's pretrial hearing in Bad Axe. Masters is charged with aggravated indecent exposure, punishable by up to two years in jail.

Authorities say a completely nude Masters yelled for the women's attention Sept. 1, then made obscene gestures.

Defense lawyer Dennis Johnston says he's "content to let the criminal justice process play itself out."

Masters is a 60-year-old resident of Southhampton, N.Y. He was arrested in New York's Central Park in May after an officer reported seeing him masturbating.