This is a silly idea

Based on the water boatmen (uses ovipositor to communicate)

Ferry is a mute insectoid futanari based on the aquatic water boatman. She wears a crisp white navy uniform and serves as a deckhand aboard a coastal vessel. She cannot speak, so she communicates by scraping her thin, syringe-like ovipositor across her ribbed chitinous body, creating loud stridulation. Her ovipositor is a single-segment rod housed in her cloaca, and it doubles as her futanari genitalia.