GEORGETOWN, Del. - A former Baltimore Ravens cheerleader and the estranged wife of a prominent Maryland energy executive was arraigned Wednesday in Delaware on charges of having sex with a 15-year-old boy who attends school with at least one of her children.

A grand jury indicted Molly Shattuck, 47, on Monday on two counts of third-degree rape, four counts of unlawful sexual contact and three counts of providing alcohol to minors. She appeared for an arraignment Wednesday in Sussex County Superior Court in Georgetown and was released on $84,000 secured bond.

Defence attorney Eugene Maurer said Shattuck has pleaded not guilty. Her next court appearance will be at a Dec. 15 case review.

"Like anybody who would be charged with an offence of this nature, she's quite distraught and dealing with it the best she can," Maurer added. "Obviously, she's very upset about it."

On Sept. 26, a 15-year-old boy told police that Shattuck began an inappropriate relationship with him near Baltimore and that it culminated with sexual activity at a vacation rental home in Bethany Beach over Labor Day weekend, said Delaware State Police Sgt. Paul Shavack. Police executed a search warrant on Shattuck's Maryland home Oct. 1 and seized items. Shavack declined to specify what they were.

The indictment alleges that Shattuck provided alcohol to three boys under the legal drinking age on Aug. 30 and Aug. 31. It charges that she had sexual contact with one boy on or about Aug. 31.

In Delaware, third-degree rape applies to several instances, including when an older person has sex with an underage person. It is a Class B felony, punishable by two to 25 years in prison.

In a letter sent Wednesday to parents, the headmaster of the school the teen attends — the McDonogh School in Owings Mills, Maryland — wrote he became aware of "inappropriate behaviour by a current parent" and a student on Sept. 24 and reported the allegations to police.

"While I was instructed by the police not to communicate with you until now because of the criminal investigation, I want you to know that the parent has been prohibited from entering McDonogh's campus and additional security measures have been in place to assure the safety of students since the incident was reported," Headmaster Charlie Britton wrote.

Shattuck's website says she has three children, including a 15-year-old son.

Shattuck is separated from Mayo Shattuck, 60, former CEO of Baltimore-based Constellation Energy Nuclear Group and current chairman of Chicago-based Exelon Corp. Exelon, which has electric and gas utilities in Maryland, Illinois, and Pennsylvania, now owns Constellation.

According to online Maryland court records, Molly and Mayo Shattuck filed for divorce Sept. 29 in Baltimore County. The Baltimore Sun reported in March that the couple had separated, although Molly Shattuck demurred to the newspaper about when the breakup occurred, saying, "It's been awhile."

In 2005, Molly Shattuck became the oldest NFL cheerleader in history up to that time when the Ravens selected her for the squad on her first tryout. She cheered for two years and was a part-time coach for six more years.

Shattuck also is a fitness consultant and advocate, and published a book in February called "Vibrant Living." Her website, which is now in "maintenance mode," says she has developed a 21-day plan for health and improved living. A cached version of her biography on the site says she is an ambassador for the American Diabetes Association and works with the American Heart Association. She's a trustee of the United Way of Central Maryland, and a member of boards for the Baltimore School for the Arts, the Johns Hopkins Children's Center and the National Children's Museum.

In 2008, Shattuck appeared on an episode of the ABC-TV reality show "Secret Millionaire" and gave away $190,000 to people helping the poor.

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Associated Press writers Amanda Lee Myers in Washington and Juliet Linderman in Baltimore contributed to this report.