Former Baltimore Ravens cheerleader Molly Shattuck has entered a guilty plea after being accused of sexual activity with a 15-year-old boy.

The 48-year-old former wife of a prominent Maryland energy executive entered her plea before a Delaware judge days before her trial was due to begin, reported AP.

Shattuck was charged last year with two counts of third-degree rape, four counts of unlawful sexual contact and three counts of providing alcohol to minors, with the victim a classmate of her son. She initially pleaded not guilty to the charges, and was released on an $84,000 ($54,000) bond.

Prosecutors alleged that Shattuck began an inappropriate relationship with the boy in Maryland, and the two engaged in sexual activity at a holiday rental home in Bethany Beach, Delaware, over Labor Day weekend.

Shattuck is the oldest cheerleader in NFL history and a self-styled fitness guru.