Happy birthday to my little sister! Don’t worry, you’re still younger than me… for now.
Happy birthday to my favorite little sister! Just remember, I’m still the cooler sibling.
Happy birthday to my little sis! Don’t worry, I’ll always be here to embarrass you.
Happy birthday to the person who used to steal my clothes, but now I steal hers! Love you, little sister.
Happy birthday to my little sister, who always manages to steal the spotlight. But don’t worry, I don’t mind being the shadow!
Happy birthday to my little sister, who’s not so little anymore. I hope your birthday is as awesome as I am!
Happy birthday to my little sister! Don’t worry, I won’t tell anyone how old you really are… or will I?
Happy birthday to the person who always knows how to push my buttons… but I still love you, little sis!
Happy birthday to my little sister! I’m so proud of the woman you’ve become, even if you’re still a pain in my butt sometimes.
Happy birthday to my little sister, who still hasn’t realized that I’m the favorite child. Just kidding, love you lots!
Happy birthday to my little sister, who’s not so little anymore. It’s okay, I still remember when you used to have a unibrow.
Happy birthday to my little sister, who always manages to make me laugh… or cry, depending on the day.
Happy birthday to my little sister, who’s still the most annoying person I know. But I still love you… kind of.
Happy birthday to my little sister, who always manages to brighten my day… or make it worse, depending on her mood.
Happy birthday to my little sister, who’s still the baby of the family. I hope you always stay young and vibrant!
Happy birthday to my little sister, who’s always been there to lend an ear or a shoulder to cry on… but mostly an ear because she likes to gossip.
Happy birthday to my little sister, who’s always been the black sheep of the family. But hey, at least you stand out!
Happy birthday to my little sister, who always manages to get on my nerves… but I wouldn’t have it any other way.
Happy birthday to my little sister, who’s still trying to catch up to my height. Good luck with that!
Happy birthday to my little sister, who’s always been the life of the party. I hope you keep on partying, even if you’re getting old.
Happy birthday to my little sister, who still owes me 20 bucks from 2009. Just kidding, love you lots!
Happy birthday to my little sister, who’s always been the wild child. I hope you never lose your sense of adventure!
Happy birthday to my little sister, who’s always been the family clown. Don’t ever change, sis!
Happy birthday to my little sister, who’s still trying to prove that she’s cooler than me. Nice try, little sis!
Happy birthday to my little sister, who’s always been the best listener. Thanks for always being there for me.
Happy birthday to my little sister, who’s always been the picky eater. Don’t worry, I won’t tell anyone about your secret love for chicken nuggets.
Happy birthday to my little sister, who’s always been the creative one. Keep on painting, sis!
Happy birthday to my little sister, who’s always been the one to rat me out to mom and dad
Happy birthday to my little sister! You may be getting older, but you’re never too old to borrow your big sister’s clothes.
Happy birthday to the little sister who always manages to steal my food… or eat half of it and pretend like she didn’t.
Happy birthday to my little sister! I hope you have a day as fabulous as you think you are.
Happy birthday to my little sister, who always knows how to push my buttons… but I still love you, even if you’re a little annoying.
Happy birthday to the person who still hasn’t returned my favorite shirt. Don’t worry, I’ll let it slide… for now.
Happy birthday to my little sister, who’s still convinced that she’s the favorite child. Sorry, sis, that title belongs to me.
Happy birthday to my little sister! You may be younger, but you’re still taller than me.
Happy birthday to my little sister, who’s always been the troublemaker of the family. But hey, at least you keep things interesting!
Happy birthday to my little sister, who’s always been the one to hog the bathroom. Don’t worry, I’ve learned to shower with one eye open.
Happy birthday to my little sister, who’s always been the one to blame her farts on me. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to eat the last slice of pizza. I hope you’re happy.
Happy birthday to my little sister, who’s still trying to catch up to me in everything. Sorry, sis, but you’ll always be in my shadow.
Happy birthday to my little sister, who’s always been the one to break my things… and blame it on the cat.
Happy birthday to my little sister, who’s always been the one to talk during movies. Don’t worry, I’ve learned to read lips.
Happy birthday to my little sister, who’s still trying to figure out how to use the toaster. It’s okay, sis, you’ll get there eventually.
Happy birthday to my little sister, who’s always been the one to snore louder than a bear. But I still love you, even if I can’t sleep.
Happy birthday to my little sister, who’s always been the one to leave her wet towels on the bathroom floor. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to forget my birthday… but I won’t hold it against you this time.
Happy birthday to my little sister, who’s always been the one to eat all the chocolate. But don’t worry, I’ll still share with you.
Happy birthday to my little sister, who’s still trying to perfect her dance moves. It’s okay, sis, I won’t judge you… too much.
Happy birthday to my little sister, who’s always been the one to put her cold feet on me in bed. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to steal my boyfriend’s attention. But don’t worry, I’ve learned to share.
Happy birthday to my little sister, who’s always been the one to borrow my car without asking. But hey, at least you fill up the tank!
Happy birthday to my little sister, who’s always been the one to forget her keys… and then blame me for losing them.
Happy birthday to my little sister, who’s always been the one to have bad breath in the morning. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to have bad breath in the morning. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to steal my clothes… and then spill something on them.
Happy birthday to my little sister, who’s always been the one to leave her dirty dishes in the sink. But I’ll still love you, even if you’re a slob.
Happy birthday to my little sister, who’s always been the one to hog the TV remote. But don’t worry, I’ve learned to use the app on my phone.
Happy birthday to my little sister, who’s always been the one to blast her music in the car. But hey, at least we have similar taste in music.
Happy birthday to my little sister, who’s always been the one to talk with her mouth full. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to take selfies at the most inconvenient times. But I’ll still pose with you, even if I look ridiculous.
Happy birthday to my little sister, who’s always been the one to snort when she laughs. But hey, at least you’re having a good time.
Happy birthday to my little sister, who’s always been the one to borrow my makeup… and then return it a mess.
Happy birthday to my little sister, who’s always been the one to forget her phone at home. But don’t worry, I’ll still be your emergency contact.
Happy birthday to my little sister, who’s always been the one to make terrible jokes. But hey, at least you try.
Happy birthday to my little sister, who’s always been the one to take up all the space on the couch. But I’ll still cuddle with you, even if my legs fall asleep.
Happy birthday to my little sister, who’s always been the one to procrastinate. But hey, at least you get things done… eventually.
Happy birthday to my little sister, who’s always been the one to get us lost on road trips. But hey, at least we have an adventure.
Happy birthday to my little sister, who’s always been the one to leave her shoes lying around. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to stay up late watching Netflix. But don’t worry, I’ll join you for the binge-watching.
Happy birthday to my little sister, who’s always been the one to forget to feed the cat. But don’t worry, I’ll remind you… eventually.
Happy birthday to my little sister, who’s always been the one to get into arguments with our parents. But don’t worry, I’ll be on your side… sometimes.
Happy birthday to my little sister, who’s always been the one to cry at sad movies. But hey, at least you have a heart.
Happy birthday to my little sister, who’s always been the one to take forever to get ready. But hey, at least you look good when you finally do.
Happy birthday to my little sister, who’s always been the one to use my toothbrush by mistake. Not cool, sis.
Happy birthday to my little sister, who’s always been the one to fall asleep during important conversations. But don’t worry, I’ll fill you in later.
“Happy birthday to my little sister! You may be younger than me, but you’re still older than your age in dog years!”
A picture of a puppy wearing a birthday hat with the caption: “When you realize your little sister is turning another year older and you’re still the cutest one in the family.”
A picture of a cake with the caption: “Happy birthday to my little sister! May your cake be as sweet as you, but not as nutty as our family.”
A picture of a cat with the caption: “Happy birthday, little sister! I hope your day is as purrfect as you are.”
A picture of a baby with the caption: “Happy birthday to my little sister! You may be growing up fast, but you’ll always be the baby of the family to me.”
A picture of a sloth with the caption: “Happy birthday, little sister! I hope your day is sloth-tastic!”
A picture of a cartoon character with the caption: “Happy birthday, little sis! You’re like a cartoon character come to life, always making us laugh.”
A picture of a llama with the caption: “Happy birthday, little sis! You’re like a llama to me – cute, quirky, and always spitting out the best jokes!”
A picture of a koala with the caption: “Happy birthday, little sister! You’re like a koala to me – always climbing to new heights and bringing a smile to everyone’s face.”
A picture of a squirrel with the caption: “Happy birthday, little sis! You may be small, but you’re like a squirrel, always collecting nuts of wisdom and making us all proud.”
A picture of a baby with the caption, “Happy birthday to my little sister who’s all grown up now – but you’ll always be the baby in my eyes!”
A picture of a cat with a party hat and the caption, “Happy birthday to my little sister who’s always had claws – but today, let’s see those paws dance!”
A picture of a puppy with the caption, “Happy birthday to my little sister who’s always been the one to fetch a laugh – here’s hoping your special day is filled with treats!”
A picture of a sloth with the caption, “Happy birthday to my little sister who always takes things slow and steady – but today, let’s speed things up and party!”
A picture of a cartoon character with the caption, “Happy birthday to my little sister who’s always had a way of bringing out the kid in me – here’s to never growing up!”
A picture of a squirrel with the caption, “Happy birthday to my little sister who’s always been a little nuts – but that’s what makes you so lovable!”
A picture of a penguin with the caption, “Happy birthday to my little sister who’s always been a cool customer – but today, let’s heat things up with some birthday fun!”
A picture of a unicorn with the caption, “Happy birthday to my little sister who’s always been one-of-a-kind – just like a unicorn!”
A picture of a monkey with the caption, “Happy birthday to my little sister who’s always been a barrel of laughs – let’s monkey around and celebrate!”
A picture of a llama with the caption, “Happy birthday to my little sister who’s always been a little quirky – just like a llama!”