Pulling up to stand

I was just asked if Ben was doing this.  Today, in fact.  I laughed and said, "Oh, no way". 

And then this afternoon he did it. 

He was in a seated position in his crib as I was putting away some laundry.  He grabbed on to the crib bumper (yes, we still have it in there), and then sloppily pulled himself all the way up. 

And then he laughed.  He was so, SO proud.