121. Happy Birthday! Here's to the cutest, smartest, most perfect sister! I think it must run in the family.
122. Glad to say I'm the proudest member of your fan club. Here's to another year of the best sister in the world!
123. Sisters are more precious than anything. Thanks for always being my best friend and role model. Happy birthday.
124. There is no better friend than a sister. And there is no better sister than you.
125. You always show up for the people around you, be it your family, friends, or acquaintances in need. The world was blessed the day you arrived.
126. Happy birthday to the best sister a girl could ask for! Hope your day is full of fun!
127. I feel so lucky that my dear sister is also a true friend. Happy birthday, you are the best!
128. Have a birthday that is as sweet and wonderful as you are.
129. Happy birthday to my lovely sister! The world is a better place with you in it.
130. There is no better sister that I could dream up. You are my best friend and partner-in-crime. Life would be dull without you. Happy Birthday!
131. Happy birthday to the best sister in the world! I hope you have a fantastic day!
132. Happiness is a cup of tea and a chat with your sister.
133. BFF means Best Friends Forever but do you know what SBFD means? It means Sister but Best Friend in Disguise. Happy birthday, #SBFD.
134. Sisters rock and I’m so thankful to have the absolute best. Happy birthday.
135. I learned a lot of things by having you as my sister: how to sneak out, how to talk to boys, how to sass our parents, how to put on makeup, and how to cut my own bangs (that one is key). The most important thing you’ve taught me by far is how to love unconditionally. Happy birthday!
136. You are one seriously resourceful woman, sis. I know this because I remember all those times you managed to finagle yourself out of trouble when we were kids. I also know this quality will take you far in life. Happy birthday, sister!
137. Hooray, it's your birthday! Probably the only thing that we didn't have to share as kids! Today it's all about you - have fun and enjoy your special day!
138. Sisters are connected heart-to-heart. Distance and time can't break them apart.
139. A birthday kiss for my amazing sis! I’m sure you’ll find fun and adventure on your big day, just as you do every day!
140. Having a sister is like having a best friend you can't get rid of. You know whatever you do, wherever you are, they'll still be there.