DENVER -- An Aspen yoga instructor has been arrested for allegedly sexually assaulting a client during a lesson, reported the Aspen Times.

Steven Jon Roger faces one felony count of sexual assault and a misdemeanor count of unlawful sexual contact. He also faces charges related to alleged incidents in 2007, June 2006 and July 2005. If convicted, he could face more than 10 years in prison.

According to an arrest affidavit, Roger would touch a woman’s thighs and buttocks with his hands and without her consent during a class.

Roger, who was interviewed by authorities in late November, said that in his 15 years of teaching "he has never had a complaint," the affidavit stated. He also reportedly said that in his years of teaching yoga he could not think of anyone who had a problem with him.

Deputy District Attorney Arnold P. Mordkin, who heads the Aspen office, told the Times that if "these allegations are true, these are very serious charges."