What's the one thing on earth you can add to a great work of art to make it better? A fat cat. The paintings of Botticelli, Rubens, Dali, Titian, and others have been "spruced up" by the digital masterminds at Deijirogu! by inserting a plump orange kitty with a hilarious expression. That's Botticelli's "Birth of Venus," above. Click through for the rest! (If your boss has something against ancient, painted asses, be aware that it's slightly NSFW.)

[Deijirogu! via Laughing Squid]