Growing up

Well, a couple weeks ago, HL lost his very first tooth. Hubby and I figured he had only lost the baby one due to the fact that it had been hit, but we were wrong. In fact, HL already has a new adult tooth coming in- and quickly- as you can see from the picture. And now he already has a second loose tooth. To further illustrate how quickly HL is growing up on me, he announced a couple weeks ago that I am no longer allowed to see him naked. Completely out of the blue. I was blindsided. This really is going just a bit too fast for me. Can't someone please figure out how to make children not grow up so fast? Please?