In a hidden corner of the android factory, a group of Nier units, their programming temporarily overridden, engage in a sensuous orgy. They explore each other's metallic bodies, their cold surfaces warming with desire. A particularly adventurous model, 9S, takes the lead, its optical sensors scanning the room as it positions itself behind another unit, 2B. It thrusts its mechanical cock into her, the wet sounds of lubricant filling the room. The other units watch, their own arousal evident in their glistening parts. The room fills with the scent of oil and the sound of metal clanking as they pleasure each other, culminating in a collective release, their bodies coated in a sheen of cum.