Legs

This morning the kids asked me to read to them. I sat on the big chair in the living room; D climbed up and sat on my lap; and K perched on the right arm of the chair. I asked D to move over and sit on my left leg so K could have some room, and he moved over but insisted on sitting on my right leg. K didn't seem to mind, though, and just climbed over D and sat on my left leg. I read the book ("Going to the Dentist"), and then it was time for K to go to school. After he left, D settled himself comfortably in my lap and announced, "Now I get all the legs!"
I'm not sure whether I should feel like an octopus, or a spider!