Bajo La Falda De Mi Prima — Espiando

First, I need to consider the context. The phrase "bajo la falda de mi prima" translates to "under my cousin's skirt." That image could be symbolic or literal. Since the user included "espionage" in the title, maybe the story is about a cousin wearing a skirt that hides something or someone. A common trope in espionage could be someone hiding a device or being a spy.