Happy Birthday from Your Best Furry Friend!
Woof woof! Happy birthday to my favorite human! I know you're probably too busy celebrating with cake and presents to notice me, but I just wanted to let you know how much I love you. You're the best human a dog could ask for!
You always make me feel so loved and cared for. You give me the best belly rubs, the tastiest treats, and you always take me for walks in the park, even when it's raining! You even let me sleep on your bed sometimes! (even though you say I snore)
I love spending time with you. We play fetch, go for walks, and cuddle up on the couch together. You're my best friend, and I can't imagine life without you. I promise to keep wagging my tail and licking your face for many more birthdays to come.
Here's to another year of happy barks and belly rubs!
Love, [Dog's Name]
P.S. Can I have some cake? Please?