Another tune from Irving Berlin's - Mr. President.
I have changed it from the daughter's view to Rex's view.
Artistic license? Easier than trying to sound like the daughter.

The secret service makes her nervous
When she is dating they are waiting to observe us
When she gets ready to hold steady for the kiss I plant
The secret service makes her nervous and she can't

They're always spying, no denying
They're always peeping, gumshoe creeping, private eye-ing
When she's beginning to give-inning like a maiden aunt
The secret service makes her nervous and she can't

She's been exposed beyond control, Just like a goldfish in a bowl
The President's daughter must drink water
No drink of Scotch, she might do what she hadn't oughter

When she's ignited, so excited that she starts to pant
The secret service makes her nervous
When her lamps are lit and she say;s "This is it!"
The secret service makes her nervous and she can't

The secret service makes her nervous
Those White House "dicks" get all their kicks
when they observe us Just as she winds up,
makes her mind up not to say "she won't"
The secret service makes her nervous and she don't

When things look rosy, they get nosy
They'll say there's "tootsie" playing "footsie" very cozy
her pulse goes higher, she's on fire, shaking at the knees
The secret service makes her nervous and she freezes

Whatever she may do or say, will be reported the next day
They don't see clearly, when she's merely being courted
When she's reported, it's distorted
When she's just necking, simply pecking with a "Cary Grant"
They stand behind her to remind her

Who and what she is, when she don't give a damn
The secret service makes her nervous and she can't