Everytime in a lucid dream where I try to hold a part of their body, they become doll like. I once tried carrying a girl by the waist and her body moved like the ragdoll effect you see in video games. it looked really strange and kinda killed the experience of being in a lucid dream a bit. Also twice in a lucid and a non lucid, I tried carrying someone and their body distorted to a smaller size and felt like I was literally carrying a baby doll.