While her students were on summer break, a Hamptons school administrator was hard at work — as a hired actor in a salacious hip-hop music video full of twerking half-naked women, joints of marijuana and binge drinking.

Esther Adler-O’Keefe, an assistant principal at Southampton HS, shocked her small, conservative community with her appearance in the video of “Best Friend,” a song by rapper J.R. and R&B singer Trey Songz.

Adler-O’Keefe says all of six words in the video, which shows the educator and her real-life husband, Brian O’Keefe, leave for the night at what appears to be their mansion.

“Enjoy yourself. Just remember, security’s here,” she says before the couple hurries off in a black SUV.

“Security” turns out to be two scantily clad female guards standing at the front of the home, wearing barely there uniforms that say “Police.” They then strip — and a raunchy pool party with dozens of semi-naked women ensues.

Adler-O’Keefe appears again at the end of the clip, when the couple return home to the trashed house to find a pile of passed out, nearly nude people, along with what appears to be marijuana.

“Esther was only hired as an actress for her acting scenes,” a spokesperson for J.R. said. “She did her job and then left.”

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