You spin away from your snack and run to me across the living room, pausing to lift one knee every few steps. I have just started my workout and you are excited to join.

”Are you marching?” I ask.

”Yeah, yeah, yeah!” You nod your head to the beat and stomp circles around me. When we switch from high knees to squats, you hurl your diapered bottom to the floor and spring back up, grinning. I can only hope you love your body this much in five, ten, twenty years.