Belly, side, up

Today, little man figured out how to get from a lay down(belly or back) into a sitting up position! I was playing on the floor with him today and went to get my water cup. I turn around and he's sitting up. Hmm, I thought, did I leave him sitting up? So I put him back down and he struggled to get up. We ate lunch and had a nice two hour nap. Then we went to get big guy from school. Who is learning about space this week. Hilarious conversations have ensued. After dinner and playing, big guy is at the table eating ice cream and little man is on the floor with some blocks. And then he just starts doing it again. Lying down. On his side. Sitting up. By the time hubs gets home, it's effortless!!!