[Pi-ko] Emachizu Manga (Pixiv Fanbox)

Emma, a policewoman, finds herself locked in an intense, secretive encounter with a lover in a cramped room with thick walls. She wrestles with her duty to stay professional while the heat of the moment drives her to explore cunnilingus and fingering, her partner urging her to hold back her voice. The scene builds to a passionate climax as Emma finally lets go, her body trembling with pleasure despite her fear of being discovered.