Happy 20th Birthday Wishes for Sister

Valuable gems are treasured and treated with special care, by those who know the worth. No one trashes a rare gem. There’s nothing as wonderful as having amazing sisters! Celebrating their birthdays in special ways is the least you can do for them. Turning 20 is important because it’s as delicate as the porcelain china representative of the age. It’s like going on furlough from the teen age as she prepares for the world of adulthood. The first year after the teens, that marks a new decade.

Now that you know it’s a milestone celebration of her coming of age as an adult, it’s time to set off her big day on a remarkable note with incredible birthday wishes, quotes and messages. You can bet that those who have no sisters, envy you right now. They are no different from those who are estranged from theirs because of toxicity.

It’s your darling big little sister’s 20th birthday. The year before they totally embrace their adult status. It’s a birthday to celebrate. Go ahead and spoil her: with a party, lovely gifts, or send a thrill of alarm through her whole system with a shocking bank alert in her account. Only, add some spice to it with lovely birthday wishes, heartwarming messages and gripping birthday quotes.

Are you ready to celebrate your darling sister in a memorable way? Do you care to make her emotional on her 20th birthday? Want to make a lasting impression on her special day?
Search no more! You can do this by spicing her day with this collection of happy 20th birthday wishes for sisters.

Happy 20th Birthday Sister Messages

‘ Happy 20th birthday to my adorable ride or fly babe! My birthday message to you will be grossly lacking in substance if I failed to let you know you mean the world to me, and then, some. I adore you, sis! May you always enjoy peace and joy. I wish you a fabulous day celebrating your adulthood.’

These lovely happy 20th birthday sister messages will rock her world on her special day:

1. Congratulations, sweet sister: it’s official, you are no longer a teenager. Consider this your send-off party from the rebellious club. I wish you many beautiful years of working out how to negotiate adulthood. Cheers, darling sis!

2. Happy 20th birthday to my darling sister, my ever-available gist partner, ever ready sparring partner, fellow foodlum and mischief buddy. You are always fun to be with and a jolly good sport. Your badge of comradeship has earned you loads of gifts today with lots of love from me. God bless you, always.

3. Interesting! Could be one of your best years yet, sis. No more a teenager, almost an adult: you could use this to your advantage by stretching your naughty teenage self or acquiring the adult lifestyle. Whatever, you are beautiful, bright and smart. Your life is before you, shine like a star. Happy 20th birthday, dearest sister. Have a blast!

4. When you have a sister that’s as cute and as charming as you, it’s impossible to hold on to grudges. Your sweetness is refreshing and lovely. Happy 20th birthday, dearest sis. Lines shall fall upon you in pleasant places in Jesus name.

5. Yippee, it’s my darling sister’s birthday! My sister? No, more than that. You are my friend, confidant, and partner in pranks, gist and adventures. Happy 20th birthday to you, sister dearest. I wish you a beautiful year of endless celebrations and wonderful surprises. Cheers!

6. Happy 20th birthday to my beautiful, sweet and intelligent sister. You are loving, caring, super nice and I love you so much. May you be successful and happy today and always.

7. Happy 20th birthday to my darling sister. I’m super proud of you. You are a go-getter, ambitious, motivated and focused young woman. I hope that your 20th is everything you desired and much more. Love you loads, Hon.

8. Happy 20th birthday to my dearest sister with whom I’m well pleased. Thanks for always getting me into spank-earning troubles while forming innocence. Thankfully, you have outgrown your mischievous escapades. Still, you are the best!

9. You have no choice: it’s either you grow up now or remain a baby girl for now. Whatever you do, may you never lose your beautiful smiles. Happy 20th birthday, sister dearest. Have fun!

10. Youth is pure bliss; let no one tell you otherwise. Enjoy yourself and make the most of your time. The future you desire starts from now. Happy 20th birthday, darling sister. Rock your day, Sugarpie!

11. Happy 20th birthday, my precious sister. Now that you’re no longer a pepper them teenager, can you calm down and face life as a mature adult now? In other words, grow up, sis. I love you to the moon and back, Sugarplum. Have a great day!

12. Happy 20th birthday to my amazing sister. Your birthday is going to be lit! Here’s to an awesome celebration!

13. Happy 20th birthday, my lovely sister with boundless energy. Now that you are off the teenage register, kindly remove the garb of tomboyish attitude. Thank you as you confirm ladylike behaviours. Have an amazing day and year!

14. There’s no time I think about you that my face will not be lit up with smiles. You are such a delightful monster, oops, sister! I love you like it’s vanishing out of existence. Happy 20th birthday to my jolly sister. You rock!

15. You are on the road to greatness already; no retreat, no backing out. Take a rest, a breather or helping hands if need be, but go achieve your dreams. Happy 20th birthday, darling sister. You rock!

16. You are old enough to sweep the world off its feet; the world is your oyster. Happy 20th birthday, dear sister. Keep on flying. Nothing is stopping you.

17. Adulthood as a scam is one of the world’s well-kept secrets. I’d have advised you not to grow up, but I really don’t want you to grow down and spiral out of control. So, grow up sis. Happy 20th birthday, darling. I love you!

18. Happy 20th birthday, dearest sister. I wish you a lifetime of happiness, true love and peace. Have an awesome day, kiddo. Cheers!

19. Life is beautiful only for those who are smart enough to enjoy its good moments, manage the bad ones and avoid the evil ones. Thankfully, you’re a bundle of smartness. Have a wonderful and happy 20th birthday, dear sister.

20. Nobody should tell you differently: there are vacancies at the top and you have all it takes to grab a place of prominence for yourself. You’re clever, super-intelligent, and ready to take the world by storm. Happy 20th birthday, darling sister. You’re the best!

21. Happiest 20th birthday to my beautiful tagalong sister. I love the way you adore me and I’m touched that I could do no wrong in your eyes. You placed me on this high pedestal that I try my best not to crash because of you. Yet, I learnt the best lessons from you…on love. I adore you, little sister. Be happy, always!

22. I can’t believe you’re twentieth already. It came too soon, don’t you think? How can my baby sister be well on her way to being a full-grown woman? I’ll adjust, no doubt, but you’ll forever be my baby sister. Happy 20th birthday, my darling.

23. Happy 20th birthday to my partner in giggling, fighting, gossiping and general mischief. May you grow into an amazing and charming woman of substance. Love you loads, sweetie.

24. Happy 20th birthday to my special, funny, caring, loving and kind sister. The goal is to have loads of fun while catching up on adulthood. Cheers!

25. I can’t believe you’re all grown up. I remember how you drove me crazy with your naughty antics. I’m glad to see this wonderful transformation and I’m uber proud of the awesome woman you’ve become. Happy 20th birthday, my sweet sister. You rock!

20th Birthday Quotes for Sister

‘ I feel so overwhelmed that I ran out of quotes to set you off on your special day. The most vital thing is you knowing I love you and I’m super proud of you. I wish you a fantastic 20th birthday, darling sis. Cheers!’

These gripping 20th birthday quotes will leave your sister in no doubt as to how much you care:

26. My one in a trillion sister, my entire world! After you, is no one but you, no caps. You are all shades of unique, special, wonderful and phenomenal. Happy 20th birthday, sister dearest.

27. Happy 20th birthday to my lovely sister. You are my number one cheerleader. Your sweet smiles always brighten my day and my shoulders are always high because I know you have my back, always. May you be exceptionally great in life. I love you to stupor, darling sister.
Have a blast!

28. Happy 20th birthday, sis! Your love is the wind beneath my sail. Your unflinching support is the anchor on which my ship of success is moored.
If dependable has a name, that will be you, big sister. If encouragement has a face, it’ll be yours.

29. If love is a brand that seeks a face for representation, yours is it. You are loving, vibrant and super nice.
Happy 20th birthday, darling sister. I adore you, my Sugarplum: you are the best!

30. Happy 20th birthday to my cute as a button, charming as an ever-elegant sister. Life with you is different shades of beautiful, fun and laughter.
I’ll always love you, sis. Have a lovely one!

31. I love your plainness. You are as straight as they come with no false air about you. You are honest, blunt, but kind. Happy 20th birthday, my one in a million sister. Cheers to a great year!

32. Life can be merry and smooth but it’s not always easy peasy peachy. It is certainly full of fun and fury. Every day of this year shall come with thousands of reasons to celebrate. You’ll escape life tempestuous fury. Happy 20th birthday, darling sis.

33. Lively, awesome, exuding good vibes, and loving: that’s my precious sister. Happy 20th birthday, Sugarplum. Have a fabulous new year, filled with an avalanche of blessings.

34. 20 certainly has a nice ring to it. Like a page before an explosive success or the turning point chapter. Are you ready? Yes, I bet! Happy 20th birthday to my gorgeous and clever sister. Stay fabulous!

35. 20 and fantastically beautiful and successful! Aren’t you just cute? Happy 20th birthday, sister dearest. I love you to boots. Have a blast!

36. Beautiful, young and charming that’s my darling sister! Seize the moment, don’t stop until you grab your copy of astounding success. Happy 20th birthday, sweet sis. Love you loads!

37. Nothing in life is certain or guaranteed. You will never know the outcome until you try and keep putting in the work. I’m rooting for you, sister dearest. Happy 20th birthday, Honeypie. Hugs and kisses!

38. Your age isn’t a barrier to greatness, it’s one of the best advantages you have. Add relevant knowledge and skill, then go to work. Nothing can limit your endless possibilities. Happy 20th birthday, sister dearest. You rock.

39. The times have changed and everything now aligns for young women who know their worth and demand for it. Happy 20th birthday, sweet sister. Go make me proud!

40. Gender discrimination and limitations can only limit the timid. You are bold and unstoppable, darling sister. I’m cheering you on to greatness. Happy 20th birthday, my dear sister. You are the bomb!

41. Know what you want and understand your purpose. Give it your best shots from every angle and watch the universe align in your favour. Happy 20th birthday, sweet sister. You rock!

42. At 20, you have absolutely nothing to prove to anyone. Stay focused on your dreams and enjoy your baby girl life, with zero stress and worry. Happy birthday, dear sister. You are the best!

43. Honestly? If you don’t believe in yourself, nobody will. So, shine for all to see. Nothing like a shining star to attract the best from the universe. Happy 20th birthday, my darling sister. Soar, like the eagle.

44. Don’t worry your pretty head with life’s inanities. Eagles fly alone and soar above others. Don’t be afraid to embrace the solitude that produces success. You have me, though. You can count on my love and support, always. Happy 20th birthday, darling sister. I love you.

45. Great people respect others and treat them with dignity. Rich or upcoming, treat others well. Happiest 20th birthday, my adorable sister. Keep on being great, it’s in you. I love you.

46. Don’t leave until tomorrow what ought to be done today. Procrastination is a deadly destiny destroyer. Make hay while the sun shines and enjoy the result of delayed gratification. Happy 20th birthday, my lovely sister. Enjoy your day!

47. When you are the boss lady, you strut around like her royal highness. Happy 20th birthday, my beautiful sister. I love you like it’s no longer trending. Have fun!

48. I feel like a superstar because I have a super-duper sister. I adore you, my caring, brilliant and smart sis. I am super proud of you. Keep doing your best, because you are the best. Happy 20th birthday, Honey.

49. A wonderful toast to an amazing sister at 20. Have a fantastic birthday, my darling. I love you so. You rock, like a star!

50. Happy 20th birthday, sister dearest. I love you to bits; cross my heart. Have a super lovely day!

Funny Happy 20th Birthday Sister Wishes

‘ I don’t find this funny anymore! Someone should pinch me to convince me that my lovely sister is now a big girl, all grown! I wish you a happy 20th birthday, darling sis!

Adultville is serious enough, bless your sister with a light-hearted spirit with funny happy 20th birthday wishes:

51. A wonderful birthday wishes to a beautiful and wonderful sister with a big heart. Happy 20th birthday to you, dear sis. You are so loving, caring, and supportive. I wish you a new year as amazing as you are!

52. Happy 20th birthday to a lovely soul! You are a paragon of beauty, classy, simple and elegant. Thanks for always being there when I need you. You’re my unwavering support system, I adore you. I wish you a lovely and fulfilling new year.

53. To my super-duper lovely sister at 20, a happy birthday to you, my darling. I’m so glad you’ve graciously conceded your past youthful exuberance to a top-notch upcoming and exceptional young woman. I wish you good health, loads of love, great wealth and unlimited joy. Cheers!

54. Happy 20th birthday to my precious sister. You have a good head on your lovely shoulders; may your path be smooth and trouble-free. I wish you all that your heart desires, with plenty of extras. Have a wonderful new year.

55. Happy 20th birthday to my smart and sassy sister. So much beauty and profound wisdom in one so young, I’m super proud of you. You are a breath of fresh and refreshing air. I wish you a birthday full of joy, fun and a new year loaded with lots of blessings for you.

56. Happy 20th birthday, my dearest sister. You are all grown up, clever and ready to take on the world! I’m so proud of your achievements. I wish you a year of more exceptional successes. Keep winning, Honeypie. Go on giving me bragging rights. I cherish you!

57. Care to win the much-coveted Oscar award for the best actress? Simply act your age the same way you put all your energy into throwing temper tantrums. Hey, just kidding! Happy 20th birthday, kid sis. Have fun!

58. There’s no performance award for the most grumpy, so loosen up and give comedy skits a try. If nothing else, you’d make loads of money. Happy 20th birthday, darling sis. Love you loads.

59. Hey, snap out of it already! Just face the reality that your teenage years and its rebellion and childish ways are over. Buckle up for the adult ride. Happy 20th birthday, sweet sister. You rock!

60. Can you beat this? You are midway to 40 already. Happy 20th birthday, old girl. Have a blast!

61. I have 20 solid reasons to provide 20 yummy cakes on your 20th birthday, until I remembered 20 horrid pranks you pulled on me. So, no cake but I wish you the happiest cake-less birthday ever, kid sis.

62. You have done more in 20 years to make my shiny black hair turn dull gray than anyone else has in same decades. Looking forward to return the favour. Happy 20th birthday, darling sister. Have a good one!

63. The older you get, the lesser your sugar intake ought to be. This is why cancelled the yummy chocolate birthday cake I ordered for you. Don’t thank me, Honey, what are sisters for? Happy 20th birthday, my bundle of absolute delight! Love you now and always!

64. I got tired of your mischiefs and thought it best to resign my position as your sister. What better time than now you’re old enough to handle it! Happy 20th birthday, my dearest sister boyfriend. Here’s to happiness, fun and blessings with loads of love. Cheers!

65. I got you the yummiest cake ever and ate all by myself. Just to show you how much I love you. I’ll send the pictures to you in a bits. Happy 20th birthday, dearest sister. You are a star, keep rocking my heart!

66. Happy 20th birthday to my lovely sister. You are such a lucky lady; I got the best birthday gift for you: myself. I hereby make myself available to sample all the mouthwatering delicacies for your birthday party. Why thank me? I’m your sister after all. Have a fabulous day, sweetie!

67. Happiest and wondrous 20th birthday to my dearest sister. Please, send your account details, I’d like to shock you with money for your favourite chewing gum. Thank me? You’re welcome, darling. Have fun!

68. Happy 20th birthday to my beloved sister. My lollipop, you are a perpetual bundle of delicious delight and I love you to the moon and back. Have a fun-filled day, sweetheart.

69. Happy 20th birthday, my beautiful premium sister. May I give you out for hire so that I can use the proceeds to celebrate your birthday in a huge way. Smart, aren’t I! Yes, it’s how we roll! Get ready to groove and paint the whole city all shades of celebration. Love you, sweetie!

70. Happy 50th birthday, darling friend. May the Lord give you wisdom to choose between flaunting your crown of gray hairs and wrinkles or use fine cosmetics, dyes and surgeries to hide them. Have fun, dearie. I’m here to cheer you on.

61. I have 20 solid reasons to provide 20 yummy cakes on your 20th birthday until I remembered 20 horrid pranks you pulled on me. So, no cake but I wish you the happiest cake-less birthday ever, kid sis.

62. You have done more in 20 years to make my shiny black hair turn dull grey than anyone else has in the same decades. Looking forward to returning the favour. Happy 20th birthday, darling sister. Have a good one!

63. The older you get, the lesser your sugar intake ought to be. This is why cancelled the yummy chocolate birthday cake I ordered for you. Don’t thank me, Honey, what are sisters for? Happy 20th birthday, my bundle of absolute delight! Love you now and always!

64. I got tired of your mischief and thought it best to resign my position as your sister. What better time than now you’re old enough to handle it! Happy 20th birthday, my dearest sister boyfriend. Here’s to happiness, fun and blessings with loads of love. Cheers!

65. I got you the yummiest cake ever and ate it all by myself. Just to show you how much I love you. I’ll send the pictures to you in a bit. Happy 20th birthday, dearest sister. You are a star, keep rocking my heart!

66. Happy 20th birthday to my lovely sister. You are such a lucky lady; I got the best birthday gift for you: myself. I hereby make myself available to sample all the mouthwatering delicacies for your birthday party. Why thank me? I’m your sister after all. Have a fabulous day, sweetie!

67. Happiest and wondrous 20th birthday to my dearest sister. Please, send your account details, I’d like to shock you with money for your favourite chewing gum. Thank me? You’re welcome, darling. Have fun!

68. Happy 20th birthday to my beloved sister. My lollipop, you are a perpetual bundle of delicious delight and I love you to the moon and back. Have a fun-filled day, sweetheart.

69. Happy 20th birthday, my beautiful premium sister. May I give you out for hire so that I can use the proceeds to celebrate your birthday in a huge way? Smart, aren’t I! Yes, it’s how we roll! Get ready to groove and paint the whole city all shades of celebration. Love you, sweetie!

70. Happy 50th birthday, darling friend. May the Lord give you the wisdom to choose between flaunting your crown of grey hairs and wrinkles or using fine cosmetics, dyes and surgeries to hide them. Have fun, dearie. I’m here to cheer you on.

71. Happy 20th birthday, dearest sister. May the Lord bless your new year with all that your heart desires. May he give you the grace to have fun, act silly without getting into trouble and keep you safe from the slay queen no ambition club. Rock your twenty with glee.

72. Happy 20th birthday, darling sis. Here’s wishing you a fantastic year filled with fun, laughter and groove. I pray the Lord to bless you with the sense to flee from harmful youthful exuberance. Cheers to an upcoming adult!

73. Happy 20th birthday, beautiful damsel. Now that you’re no longer a baby, where are you taking me for your birthday dinner? Give me a call when you’re ready. Have a fabulous day, sweet sis!

74. Fancy taking me out on a shopping spree? Just because it’s your birthday day and I’m your favourite sibling? Happy 20th birthday, darling sis. I love you.

75. Happy 20th birthday, my darling beloved sister. I love you so much that I’m ready to gobble up all your party treats. It’s the least I can do, after all, you hate wasting food. You are welcome, darling. Let’s party already.

Happy 20th Birthday to My Little Sister Wishes

‘ There’s nothing too good for me to give you. You deserve the best of me and my substance. Happy 20th birthday, little sister. I wish you the best, today and always. Love you loads!’

Set your sweet little sister’s day ablaze with these beautiful happy 20th birthday wishes:

76. Happy 20th birthday to my beautiful little sister with the kindest and most generous heart ever. When I hit my billions, you’ll be rolling in a multitude of millions. I wish you the best today and always. I love you.

77. Happy 20th birthday to my naughty little sister. You are such a pest, but I love you like that. There’s never a dull moment with you. You make life colourful and lively with your shenanigans. I wish you a really good year. Have fun!

78. Happy 20th birthday, darling sis. I’m super proud to have you as my sister. If I have a choice, you’ll still be my prize choice. I couldn’t have asked for a better one as you’re simply the best. I love you so much. Have a blast!

79. Happy 20th birthday to my dearest beautiful and vivacious sister. You mean so much to me, and it’s never up for debate. I wish you lots of fun, love, good health, and prosperity. Love you loads.

80. Happy 18th birthday to the best and most beautiful sister in the whole universe. I wish you an incredibly wonderful and long life full of endless celebrations.

81. Happy 20th birthday to my jolly, caring and loving sis. Keep celebrating and spreading joy. I wish you an awesome new year!

82. I wish you the happiest 20th birthday, dear sister. One as amazing as you are. In this new phase, may you shine effortlessly. Sending you hugs with love for every moment of your special day. Enjoy yourself!

83. When you are finally an adult, you groove till mama calls or the cock crows! Happy 20th birthday, beautiful sis. Keep rocking your world with your brilliance and beauty!

84. Happy 20th birthday, dearest sister. Hope your special day brings you all the happiness you deserve. Here’s wishing you a very beautiful birthday with loads of love and lots of fun.

85. As you prepare to wade through the murky waters of adulthood, may you receive grace to remain cool, calm and collected. May you never lose your smiles or joy. Happy 20th birthday, dearest sister. You rock!

86. Happy 20th birthday to my effortlessly beautiful and fashionable sister with the sparkling eyes and cutest smile ever! I wish you everything terrific, special and blissful.

87. Happy 20th birthday, dearest sister. Here’s wishing you a fantastic year with loads of love, hugs and kisses from yours truly!

88. Happy 20th birthday to my darling sister, confidant, fellow mischief-maker, and gist partner. I wish you a spectacular new year. Enjoy yourself!

89. Happy 20th birthday to my sharp, vivacious, fun-loving sister. Thanks for always putting a smile on my face. I wish you loads of joy, peace, and blessings without limit. Keep smiling!

90. Happy 20th birthday to my exceptionally brilliant and gifted sister. Here’s wishing you a year as amazing as you are. I love you, dearest.

91. Happy 29th birthday to my dependable big sister. Thank you for always watching my back and sharing from the fountain of your rich experience and wisdom. Thanks for giving me unlimited access to your fancy wardrobe and coffer. You are the bomb! I wish you a fabulous day!

92. Happy 20th birthday to my stunningly beautiful sister with the most captivating smile. I love you like I’m enchanted. Your boldness and confidence in my energy booster and mood-lifter. I wish you a year of plenty of magical moments.

93. I am so blessed to have a wonderful sister like you. You are my best-kept secret for turning out well. Your love is my motivation. Your affirmations keep me going. I love you, sis, and wish you the happiest 20th birthday ever!

94. Happy 20th birthday to my lovely sister. I wish you a wonderful, joyful and prosperous year. Loads of love to you.

95. Happy 20th birthday to my favourite sister. No matter what you face in life, I’ll always be here for you. Two heads are better than one: you’ll never walk alone. Best wishes with all my love!

96. Happy 18th birthday, dear cousin. You are a wonderful sister, lovely, loving, and kind. You’re cheerfully welcome to adulthood. The path ahead may be rocky or level, the good news is that you are fully in control of the direction it takes. Here’s wishing you the perfect ride of your life.

97. Happy 20th birthday, dear sister. Hope you know you mean the world to me. I welcome you to the best time in your life. One full of countless promising and intriguing moments and packed with thrilling adventures, and riddled with real-life challenges. Enjoy the ride!

98. Get ready sis, you are about to be in charge with a little disclaimer: the Piper dictates the tune. So dancing to the tune of those who pay your bill is all the experience you need to be a full-blown adult. Happy 20th birthday, sister mine. Have a spectacular day!

99. Happy 20th birthday to my tall glass of sparkling champagne sister! You are the bomb! I love your focus, confidence, boldness, and maturity. Honestly? You’re ready to tackle this phase called adulthood. I wish you tons of fun today and always. Have fun, sweetie.

100. See this adulthood? You’re born prepared. You have all it takes to handle and live life on your terms and succeed while at it. Happy 20th birthday, darling sis. You rock!

A good sister is a rare gem. No money can buy the beautiful love of a sister. Even the ones you considered terrors are an integral part of your life. Life could be boring without all types. Whether tough or tender, sisters are wonder like that.

Whether they tagged along and acted their age or they are just perfect! Sisters act in multiple roles and multitask. They are your companions, chaperones, confidants, carers, trusted partners in mischievous adventures, or role model figures. Simply put, they are special delights to have around. The good ones make you look forward to holiday times or free weekends you can call or chat with them.

Your beloved sister is no more a baby girl. She’s well on her way to being a proper lady; a young adult at that. This calls for a celebration, don’t you think? Sending her lovely cute wishes, funny messages, and gripping 20th birthday quotes is one wonderful way of making her birthday fabulous and memorable.

Thank you for making her day with this special gift of cute birthday messages and wishes. You sure made her day. Thanks for building special memories with your dear sister. I’m glad you were able to choose the perfect one for her.

Kindly share this with your friends, family and colleagues. I bet you get to be rewarded with a smile of gratitude for helping out. Do you have any questions, suggestions or comments? Please, feel free to drop them. It’ll be my pleasure to respond.