Doll/robot play
One partner acts as an inanimate doll or a programmed robot that the other can “position” or command. For doll: the “doll” might stay limp until “posed” by the other, who moves their limbs into positions. The doll might only respond once “wound up” or might just be passive the whole time (which some find erotic as absolute control, but check the doll partner isn’t actually uncomfortable or bored!). For robot: the person pretends to be mechanical, moving in jerky motions or responding only to certain voice commands (“Initiating kissing protocol”). This can be silly fun or strangely hot if you enjoy a partner being very submissive/ object-like. Just be careful the “doll” doesn’t feel dehumanized beyond what’s agreed – again, aftercare and calling each other by name and loving words returns you from objectification land.