ARLINGTON (CBSDFW.COM) – A Kennedale High School teacher turned herself in to police in Arlington on Monday morning after allegations were made that she’d had inappropriate relationships with five students.

Brittni Nicole Colleps is accused of having sexual intercourse with the students at her Arlington home, and is charged with five counts of inappropriate relationship between a student and teacher.

READ MORE: North Texas Mom Hospitalized 93 Days With COVID-19 Delivers Healthy Baby Girl

While all of the students involved were 18 or older, it is against state law for teachers to have a sexual relationship with students.

The encounters in question happened during April and May of this year.

The Arlington Police Department began investigating the 27-year-old teacher after police in Kennedale and Kennedale High School staff notified them of the allegations.

Parents said that the five students bragged about having sex with Colleps.

According to police, detectives soon discovered some inappropriate cell phone communications. “During the investigation they discovered that… there was an exchange of text messages between at least one student and the teacher that included sexually explicit photos,” explained Arlington Police Department spokeswoman Tiara Richard. “And also the student described being involved in a sexual relationship with the teacher.”

READ MORE: DFW Area Has 5 Boys Basketball Players Named McDonald’s All Americans

Police also talked with students who described in detail having been in Colleps home and having had sexual intercourse with her there last week.

“Our understanding at this point is at least one of the encounters involved all five boys in the same time period, but there were other times when it was one student with the teacher,” said Richard.

Colleps, who is now on administrative leave, was a first-year English teacher and freshman girls basketball coach.

The Kennedale Independent School District posted a letter about the situation from Superintendent Gary Dugger on the high school’s website. It does not mention Colleps by name and makes only vague references to what allegedly happened. Click here to read the letter.

The charge of inappropriate relationship between a student and teacher is a felony.

Colleps was released from the Arlington City Jail on Monday afternoon, after posting a $125,000 bond.

MORE NEWS: Dallas ISD To Launch Full-Time Virtual School This Coming Fall

Police in Arlington said that their investigation continues, as they try to determine if more students may have been involved.