That report reveals that the alleged victim, 15, told his mother he and Cabot Junior High North teacher Stacy Stracener, 36, had sexual contact including intercourse 13 times.
The report also shows that Stracener once taught the boy in 7th grade and was a friend of his family, often attending BMX bike races with them and her own family.
Stracener turned herself in on Monday and was released on $25,000 bond after a court hearing on Tuesday.
The boy attends another school in the Cabot District, the report says.
The police report was filed February 8 by Cabot School District Superintendent Dr. Tony Thurman. Two days before, the police spoke with the boy's mother, who revealed details about alleged contact between her son and Stracener.
The mother told investigators that she was looking at her son's cell phone records and noticed a lot of texts between the two. She said most of the texts had come during the previous three days and she stopped counting at 40. They started as early as 6AM and went to almost midnight, she told police.
The boy told his mother the texts were about school and bike racing, but when she asked her son if Stracener had sent him texts about what she wanted to do to him, he hung his head and said yes.
At that time, he told his mother he and Stracener had "messed around" but had not had sex.
Police then asked the mom to bring her son and his cell phone to the Wade Knox Child Advocacy Center in Lonoke. While on the way there, according to the report, the boy told his mother that he did have sex with Stracener, telling her about the 13 different alleged encounters.