Acclaimed director John “Buttman” Stagliano considers helping wayward young ladies expand their sexual horizons to be his personal calling. In his home studio, countless horny students have received one-on-one guidance and training in ass tease, erotic deportment, fetish play and extreme masturbation techniques. But when one of Buttman’s girls strays from her erotic goals, she must return to class for some remedial study... flavored with a bit of kinky punishment. In “Buttman’s Stretch Class: Detention 3,” gorgeous delinquents get thoroughly disciplined via the director’s collection of big anal toys, SM contraptions, household objects and vibrators.