(NEWSER) – It was only research. So says a German mayor who, via a post on his town's official Facebook page, inadvertently busted himself for checking out online porn. Thomas Koppl of Quickborn, in the course of a political debate, posted a screenshot of the German constitution to Facebook.

He neglected to crop out the tabs at the top of the browser, though. Among the pages shown in the now-deleted screenshot were "Punishment Porn Videos," "BDSM porno videos," and "German slut punished." The "cringeworthy mistake" was covered by German-language newspaper Bild, and after a Facebook user shared the story, Koppl himself commented on it, notes the Telegraph.

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