"Unfaithfulness," Paolo Veronese, c. 1575.
Veronese (1528-1588) was a Venetian Renaissance painter, most famous for his extremely large religious, history, and mythology paintings. Along with Titian and Tintoretto, he's regarded as one of the three great Venetian painters of the time, and his work was eagerly sought by collectors during his lifetime.
This is one of a series of paintings done as "An Allegory of Love." Here we have "Unfaithfulness," sometimes called "Infidelity," the first of the four. Here the lady seems ready to go for the guy in pink...but in the second, "Scorn," it's the bearded man she looks on with contempt as he writhes in agony, and in the third, "Respect," he comes across her nude form again....but in the fourth, "Happy Union," she seems to be hooking up with the pink guy again. It's unclear if they're meant to tell a story, or just be a representation of different amatory experiences, perhaps in opposed pairs..."Scorn" vs. "Respect," and "Unfaithfulness" vs. "Happy Union." It's all up to interpretation.
From the National Gallery, London.