Growing to FAST!!

My little 3 1/2 month old is growing way to fast. Last night I had him on the ottaman and he rolled from his back to his stomach. He has already mastered the role from stomach to back (he started at six weeks old). He seems so much older to me than he really is, and it makes me miss the baby, baby stage. As you can see from the picture I caught him in the act of a roll over.