Pamela Rogers Turner, 28, entered a no contest plea that allowed her to avoid a scheduled November trial on multiple charges of sexual battery and statutory rape.
She became tongue-tied trying to enter her plea after hearing the prosecutor read details of the sexual encounters with the boy that began last November and went on for three months, including one that occurred in the school gym, the Southern Standard newspaper reported.
"I can't even talk," she told Circuit Court Judge Bart Stanley.
Turner was arrested in February and freed on a $50,000 bond after investigators discovered the relationship, and an indictment charged her with 15 counts of sexual battery by an authority figure and 13 counts of statutory rape.
Before resigning, Turner taught physical education and coached girls basketball two years at Centertown Elementary, a school teaching children from ages 5 through 14, about 65 miles southeast of Nashville.
She was a former college homecoming queen and basketball player who once appeared as a bikini-clad promoter for a professional wrestling match. The sheriff once described her as "absolutely gorgeous."
Turner arrived at the courthouse more than an hour before the hearing and made no comment other than responses during the proceedings. It was her first court appearance to answer the charges, reports Lyra Manning of CBS Nashville affiliate WTVF TV.