Happy Birthday to my oldest friend!
We've been friends for so long, I can't remember life without you. Happy Birthday!
Happy Birthday to the one who has been there since the beginning! From scraped knees to broken hearts, we've navigated it all. Our shared history is a treasure.
So many of my best memories include you. Happy Birthday!
Happy Birthday! We're not old; we're classics.
Growing up with you was the best. We've shared so many secrets, laughs, and dreams. Thanks for being a constant in my life. Have a fantastic birthday!
To my first best friend, Happy Birthday.
Happy Birthday! Thanks for never telling my mom.
Remember when we used to [insert memory]? Happy Birthday!
No matter how much time passes, when we get together, it's like we're kids again. I cherish our lifelong friendship. Hope you have the best birthday.
Cheers to all our crazy adventures. Happy Birthday!
It's a special thing to have a friend who has known you through every phase of life. Thank you for sticking with me. Happy Birthday to my dear childhood friend.
Happy Birthday! So glad we're still friends after all these years.
We go way back. Happy Birthday!
Even after all this time, you're still one of my favorite people. I hope you have a day that's as wonderful as our friendship.
Happy Birthday to my partner in childhood crime.
I'm so grateful for a friendship that has stood the test of time. You've shaped who I am today. Have a wonderful birthday.
Wishing you a birthday as happy as our childhood summers.
We've seen each other through awkward phases and big milestones. There's no one else I'd rather have done it with. Happy Birthday to an irreplaceable friend.
Happy Birthday! You'll always be young to me.
To the friend who knew me when, Happy Birthday.
Our roots run deep. Happy Birthday to a friend who is more like family.
I look back on our childhood memories with so much fondness. Thank you for being a huge part of the best days of my life. Happy Birthday!
Happy Birthday! Let's never grow up completely.
Through all of life's changes, our friendship has remained. That's something special. Wishing you the happiest of birthdays.