Feel the old... be the old.

lol

Happy Birthday!

Swiggity swag here's a gift bag

(See it works on two levels because "swag" can also refer to a set of miscellaneous items like the kind you would find in a gift bag)

(Happy Birthday) 

merry oldsmas

haha you're old

As I am also 25 years old, I too feel old at this age. So don't worry, you're not alone.

Also, Happy birthday!

happy birthday oldilocks

guess what

Thank you for all of these lovely comments and illustrations.

Oh you silly kids.