A substitute teacher in Oklahoma had the bright idea of doing a cartwheel in front of a junior high school choir class…with no panties on.

34-year-old Lacey Sponsler exposed herself to the students this past Friday at Pawhuska High School.

She’d been wearing a long dress, but no panties, “which caused her to expose herself to the students in this class,” according to authorities. “This act was captured by a student on their cell phone,” according to the arrest affidavit.

As she performed the gymnastics move, her dress was “flipped up,” exposing her butt and crotch. An officer who reviewed the video captured, verified “that the Defendant was not wearing any type of underwear.”

A 17-year-old female student told cops that Sponsler “had said that she was not wearing underwear before performing the cartwheel,” and it exposed her “bare vagina.” The student went so far as to say she saw the saucy substitute teacher’s “vagina open and close, as her legs were in the air.” The girl went on to tell authorities that Ms Sponsler “had been talking about using drugs” and had mentioned how she “thought fourteen year old boys were like men.”

When interviewed by cops, Sponsler denied performing any cartwheels. After being informed that there was video of the incident, she then said that she “did not remember performing a cartwheel or exposing her vagina and buttocks.”

She says she was “just dancing with the students” and “trying to be a cool teacher.”

She was charged with indecent exposure.