To claim this quest:
Another machine in the human (or dwarven) powered category is a saddle style fucking machine. Ari designs them with a phallus attached underneath a frame with a flexible material that a rider can sit on. An opening in the seat allows access, either to the phallus attached below, or to a partner positioned in any of a variety of positions underneath the rider (with the phallus removed.) Unlike the rocker, the phallus itself doesn’t move – the rider bonuces on the flexible seat in order to provide the elbow grease. Play with a saddle-style machine to claim this quest.