The radio DJ accused of grabbing Taylor Swift's bare ass while posing for a photo with her has spoken for the first time, and has a pretty handy explanation of what went down ... for him.
DJ David Mueller gave his account of the infamous alleged groping to a Detroit's "Mojo in the Morning" show Tuesday -- he says there was a touching of Tay ... but it was accidental and harmless.
Mueller claims his hand was never open and sounds pretty pissed over allegations he touched her bare bottom. Take a look at the pic ... do you buy David's story?
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