Funny sister birthday quotes and sayings age18
1. "Happy 18th birthday, sis! You're officially an adult now, but let's be real, you'll always be my little sister who can't reach the top shelf."
2. "Cheers to 18 years of putting up with each other! Here's to many more years of me annoying you and you pretending to be annoyed."
3. "Happy 18th birthday to the sister who never fails to make me laugh, even when I want to strangle her. Love you, you little troublemaker!"
4. "They say age is just a number, but at 18, you're finally old enough to buy your own birthday cake. Just don't forget to share it with me!"
5. "Congratulations on turning 18, sis! Now you can legally do all the things you've been doing behind mom and dad's back for years. Just kidding... maybe."
6. "To my sister on her 18th birthday: May your day be filled with laughter, love, and lots of cake. Just make sure to save me a slice!"
7. "Happy 18th birthday, sis! Remember, you're not getting older, you're just getting closer to being as fabulous as me."
8. "They say wisdom comes with age, but let's be real, you're still my little sister who can't remember where she put her keys. Happy 18th!"
9. "Turning 18 is a big milestone, but don't worry, sis, I'll still be here to embarrass you in front of your friends. It's all part of the sisterly love."
10. "On your 18th birthday, remember that you're not just a year older, you're also a year closer to being as awesome as me. Happy birthday, sis!"
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