Kinglsey hates tummy time. You'd think after spending over half his life on his tummy, he'd be used to it. Nope. Seems he's had enough tummy time to last a lifetime. He pushes up a bit and looks around, whines, and then gets fed up and just lies there blowing bubbles until you flip him back over.
I think it's his cheeks. Poor kid as a disadvantage since his face must weigh about 4lbs more than the average.