[He'd say she can say it now, there's no need to hold back there... But baby is highly distracting, and while he's held his son before it's a whole new thing, to have him handed over by his mother... By someone who knows what their connection is, who won't think it odd if he lingers or pays too much attention to him.]
[Or, as is the case, grins like a complete fool as he carefully holds him up, whispering a quiet hello down to him.]