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 digital mastermind Svetlana Petrova at Fat Cat Art 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.)

[Fat Cat Art via Laughing Squid]

Rubens' "Drunken Silenus supported by Satyrs."

Salvador Dali's "Dream Caused by the Flight of a Bee Around a Pomegranate a Second Before Awakening."

Rubens' "Judgement of Paris."

Velázquez's "Equestrian Statue of Philip IV."

Rembrandt's "Danae."

Botticelli's "Pallas and the Centaur."

Rubens' "Three Graces."

Titian's "Venus and Cupid with an Organist."