Cusco's cobblestone streets echo with forbidden desires in 'Primera Parte Amiga del Cusco.' Our 'infiel' mistress, played by a stunning local, meets her lover in a dimly lit room. Their bodies press together, his hands caressing her curves, hers exploring his muscular form. They're both married, but the thrill of the taboo fuels their lust. She whispers 'cuernos' - 'horns' - into his ear, a promise of the betrayal to come, as they lose themselves in each other, their bodies slick with sweat and desire.