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It's from the photographer Brad Everett Young, and you can peruse a great big gallery of his work over on Flickr. Besides Derek there are a whole bunch of hot gentleman folk to be seen, so I highly recommend that click.
Good grief, this man. This man is too much. Too much too much. In case you've never stared at him for hours before, check out our Derek Theler archives. They are thorough, and also worth the clicks. Click click click click. (Click is the sound of the world masturbating, by the way.)
