21. Another year older, another year of holding each other hostage by our childhood secrets!
22. Happy Birthday! Every year when your birthday comes around, I’m reminded of that one time you-know-who did you-know-what. LOL!! Shhhh - it’s still our little secret *wink wink* Love you lots!
23. To the weirdest person I know besides myself, happy birthday!
24. Enjoy the next three years until you are officially OLD! Love, Your younger sister.
25. Happy birthday, fashionista! Thank you for all the times you (didn't) let me raid your closet!
26. As always, bless this mess and I hope your birthday is the best!
27. Thank you for vetoing some of my high school outfits. Couldn't have survived without you!
28. Happy Birthday, sister. You’re a very special lady. Perhaps 27 will be your year? SO OLD!
29. No one knows me like you do, and thank goodness for that! Grateful for your unconditional love.
30. As siblings go, you really take the cake. Happy birthday!
31. Feeling blessed that you came first! Happy birthday!
32. I love having a private language with someone. Here's to the only girl that gets me!
33. Happy 18th Birthday, sister! I wish I could be there to celebrate with you. I’m so proud of you and I miss you everyday! Now that you’re a legal adult, try to make better choices than I did! Haha! Love you to the moon and back Birthday Girl!
34. Thank you for always covering for me in high school!
35. Thank goodness you entered this world, so I didn't have to deal with our parents alone!
36. You’re not actually old… I guess. You’re one of my favorite humans & you’re beautiful! I hope your day is fantastic.
37. Sibling love like ours is rare (I know it because you haven't abandoned me yet!)
38.