Here are some birthday quotes for your brother:

1. "Have a ballin’ day, bro!"
2. "Happy cake day, brotha!"
3. "Happy birthday to my sidekick!"
4. "You’ve always been there for me through thick and thin, bro. Thank you for being the best brother anyone could ask for."
5. "We had the best time growing up, didn’t we bro? Thanks for so many happy memories!" ^wikihow.com+1 ^{1 2}