He went straight from baby...to a man

My first son, god bless him, is still a boy. He runs and plays, but he is still a boy-he always comes home to mama. The other one...he went straight from baby to man. Actually I'm pretty sure that he makes this change daily. Sometimes he's the sweetest little baby...and then...the man. He burps (on command no less!) and stares at girls. He doesnt listen to me...he does things just to spite me. He's 3!!!!!!! We've said a thousand times, the 2nd one is the devil...and I mean it. I never thought I'd love the devil this much.