A boyfriend’s sister should just be like a sister from another mother if you guys are close. A boyfriend’s sister that really loves you will always be on your side to show that she accepts you.
She should feel safe with you and see a sister in you and if you two are close then she’ll want to be around you and you want to be around her. You just want to keep the relationship between you two, either for the sake of your relationship with her brother or for the love you have for her.
Her birthday is a very good opportunity to let her know how much she means to you, how happy you are to have her in your life, and how much you value your relationship with her.
I would love you to read through the birthday wishes for boyfriend’s sister below, so you can celebrate and make her happy on her birthday. You could send them to her via text, Facebook, Instagram and other social media platforms.
Happy Birthday Messages to My Boyfriend Sister
You are my boyfriend’s sister, and I love and respect you a lot, that’s why I am sending this happy birthday message to you. I wish you long life and prosperity. Enjoy your day.
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1. You’re the prettiest sister to the most handsome and loving boyfriend in the world. I’m lucky to have you in my life. Thank you for standing in for your brother whenever he’s not around. God bless you. Happy birthday to you.
2. Has anyone told you how responsible and well-mannered you are? Never have I seen such a beautiful yet humble lady. Thanks for always keeping in touch, I appreciate everything. Happy birthday to you.
3. Whenever I need someone to talk to, you’re always there. Whenever I report your brother to you, you are far from being judgemental. Thank you for all you do for me. This relationship is still on because of you. Happy birthday, sis.
4. Many-a-times when I am confused about what next to do, you’re always right beside me. You have an answer to every question and a solution to every problem. Thank you for counting me worthy of your love. Happy birthday, dear.
5. Thank you for always reminding me about how I am going to make a beautiful bride, this has only got to show that you approve of my relationship with your brother. Thank you for the love and gifts always. Happy birthday to you.
6. As the only sister to my boyfriend, I always expect you to be overprotective of him, and not want any lady around him, but no. You love me for him. I’m grateful for your approval of our relationship. Happy birthday to you.
7. I have so many things I’d love to say to you today, but I guess I will just leave them till my wedding day. Thank you for always supporting me and your brother. I love your family too. Happy birthday to you.
8. Happy birthday to my not so little boyfriend’s sister. You have been a huge source of joy to all of us around you. I’m one of the luckiest persons to have you. God increase your age with good health and a sound mind. Enjoy your day.
9. I’m sure I am not the first lady to be telling you how beautiful you are. I know it’s kinda weird for a lady to make such a statement towards another lady, but I can’t help it. Happy birthday to you, dear.
10. I’m lucky to have your brother in my life. The fact that you made this relationship possible makes you one of the sweetest people in my life. Thank you for giving me the best; your brother. Happy birthday to you.
11. I’m glad you’re getting things very right, at your age. Thank you for teaching me how to set up a business and succeed while at it. I can’t thank you enough, though. Happy birthday to you.
12. Forget whatever anyone says; they will always have an opinion though, you are the best. Believe me when I say that. You’re deeply loved and cherished. Wishing you many happy returns of the day. Enjoy.
13. Your future is so bright, and everyone is waiting for what you’ve got in store for the world. I know you can’t wait to start breaking grounds, like the champion that you are. Happy birthday, dear.
14. It’s not like you don’t have faults too, but I love your faults. You’re a very straightforward person, and nothing beats that. Please, keep it up and see how much you will start excelling. Happy birthday to you.
15. I truly want to give you the whole world, if possible, but where will myself and your brother stay? In short, you deserve anything and everything. God bless your age. Happy birthday to you.
16. After your brother, you are my favourite person. I just love being around you, probably because you make me feel loved and wanted. Thank you for making your presence available always. Happy birthday to you.
17. Happy birthday, lady boss. You have proven beyond reasonable doubt that you are the best at everything you set your mind to do. I seriously envy you. Thanks for being there for every one of us. Happy birthday to you.
18. You’re always talking about how you will love the kids I have for your brother. How you will not stop showering me with gifts. This and more has made me forget about how bad your parents treated me when your brother took me home. Thank you for loving me. Happy birthday to you.
19. You give us all so many reasons to smile. Your happiness is contagious and gets to everyone. We always want to have you around, because of this. Thank you for giving us reasons to cheer. Happy birthday, dear.
20. There’s nothing that’s happened or happening in my life that you don’t know about. I feel like you’re the sister my parents never gave me. I love our bond, and I will cherish it forever. Happy birthday, sister.
21. I’m not going to lie, you have been so amazing. You show up at every given opportunity you have. Sometimes, I want to tell you that your brother is the one who should do all of these, but then I realize that I need your love too. Happy birthday to you.
22. Despite your brother’s stubbornness, you still love him. In case you don’t know, I learnt how to deal with my siblings in the best way possible, from you. You’re a very good sister. Happy birthday to you, dear.
23. Even though we aren’t related by blood, I still see you as my sister. The love you have for me is too pure. Thank you for accepting me into your life. Happy birthday, my dear. Thank you for everything.
24. I am so thankful that you are my boyfriend’s sister. You are a huge blessing to me and everyone. Your good deeds speak for you. Never change who you are. Happy birthday to you.
25. Seriously, I expected you not to have any business with me, as your brother is my boyfriend. But you proved that nothing is in this world, by getting close to me and loving me. I really can’t say much, as you already know that I love you. Happy birthday.
26. I’m so lucky to be a partaker of your love and pampering. You pamper me like I’m some little baby; I love it, though. Here’s wishing you many more blessings than you deserve. I’m proud of you. Happy birthday.
27. I just wish I had the chance to choose my sister, I would have chosen you. Well, I’m thankful you still found your way into my life. Thank you for the deep counselling every time. Happy birthday to you.
28. When your brother told me about wanting to take me home, I was sceptical about the idea. I felt like no one was going to like me, especially you being the only sister he has. But voila, you accepted me with love. I am so grateful. Happy birthday to you.
29. I’m so glad I can call you my sister. You’re the sister I never had. I’m so blessed to know you. I wish my relationship with your brother later graduates into marriage, I will be the happiest woman. Happy birthday to you.
30. Even if I call it quits with your brother today, I will still be in contact with you. You have impacted my life positively, and I don’t want anything to come in between us. Thanks for everything. Happy birthday to you.
31. Not only was I blessed with a great boyfriend, but also with an amazing sister like you. I’m grateful for how much you show me love. You love me with no condition at all. I hope I can repay you. Happy birthday.
32. I’m grateful that I met you before your brother, so if things don’t later work out fine, we still have our friendship going. Thank you for being an amazing lady. Congratulations on your birthday, may it come with lots of blessings.
33. Thank you for giving me so many reasons to smile. I never felt the love of a sister, until I met you. Thank you for finding me deserving of your love. I love you and your brother so much. Happy birthday.
34. I just love seeing you smile and happy. The bond we share has opened my heart to so many beautiful things I never thought existed. Truly, I will never be this happy without the love from you and your brother. I cherish you both. Happy birthday to you.
Birthday Prayers for Boyfriend’s Sister
We all need prayers in our lives, but you come first. May all the prayers you receive today be answered by God. Happy birthday to you, thank you for being a good sister to my boyfriend.
How to address your boyfriend’s sister without disrespecting her.
35. The atmosphere is always very conducive with you around. I love how deep we discuss things that pertain to our lives. Don’t worry, we are achieving those goals together. Amen. Happy birthday to you, sister.
36. You are always wishing me and your brother luck. You don’t even feel threatened to have to deal with another lady. Thank you for releasing your brother to me. May you find true happiness. Happy birthday.
37. A sister like you deserves all the great things in the world. You don’t only love your brother, you love me, his girlfriend too. I can’t thank you enough for the sisterly role you play in my life. You’re blessed. Happy birthday, dear sister.
38. Today is your birthday, and you look so ravishing. Lord bears me witness, I have loved you long before I met you. I’m thankful you found it very easy to love me back. May the Lord protect you from every harm. Happy birthday, and have fun.
39. I could go on and on praying for you because you deserve it. You have been such a wonderful person to me. I’m grateful I am associated with someone like you. You’re in for great things, this year. With love, from me and your brother. Enjoy your day.
40. Your new age looks so good on you. You work so tirelessly in achieving your goals, and you still never stop. I wish to have that kinda energy. Thanks for being a great example to us all. May God crown your efforts with success. Amen.
41. It’s always one good news or the other, whenever you are around. I wish to always be around you. Thank you for accepting me not only as your brother’s girlfriend but as your sister. May God accept you into His kingdom, when it’s time. Happy birthday.
42. Sometimes, I want to call you “Madam perfect”. You’re always on the go, and ahead of your game. Yet, you seem to keep yourself up and still brighten the lives of those around you. God bless you, dear. Happy birthday.
43. You’re a light onto our paths. Having a sister like you takes sorrow and pain away. I know this because of how you treat everyone around you. Thank you for giving me a chance. May you be given chances wherever you need them. Happy birthday to you.
44. Even though your brother comes off as someone who doesn’t care, he does. I know this because he tells me a lot about how he can’t wait to take you around the world before you get married. I love you too. May you have a happy birthday.
45. I seriously never thought we could get this close. I believed it wasn’t possible, that’s why I never made the move. Thank you for being the mature one. I wish you more happiness. Happy birthday to you.
46. I have a confession to make. I love how you shout “marriage” up and down whenever you see your brother and me. That shows the love you have for us. I’m grateful. May grace be multiplied unto you, as you age. Happy birthday, dear.
47. May your birthday be the beginning of greater things in your life. You are a selfless person, and you deserve more than you get. May God open ways in your favour. Happy birthday, dear sister.
48. I seriously hope that your birthday brings you everything you have always wanted and prayed for. May you enjoy God’s grace on all sides. Happy birthday to you. I love you so much. See you later with your gifts.
49. This relationship was possible because of your intervention. You literally match made your brother and me. I love how you want the best for him, though. Thank you for being there always. God will bless you.
50. Your brother is so lucky to have you, and it’s so sad that he doesn’t know this. You are the most peaceful lady I have ever come across. Like, I can’t take half of what you condone. I pray luck smiles on you soon. Happy birthday to you.
51. You are a great blessing to our lives. You deserve all the love you can get on this day. Thank you for always checking on me and your brother. I appreciate your kindness a lot. May you always be remembered for good. Happy birthday to you.
52. Prayers don’t get too much, you know. And I don’t mind exhausting all I have today. You are always rooting for me, even when you’re far away. I don’t know how best to repay you, but may God thank you for me. Happy birthday, dear.
53. Every day is beautiful with your jokes and the positive vibes you share. No one can be dull or unhappy around you. You make everyone happy the best way you can. May happiness locate you in everything you do. Happy birthday.
54. It’s a brand new year, and I wish you a brand new grace, favour, blessing, mercy if God and all that you wish for. I wish I were around you, it would’ve been an epic turn up tonight. Have fun, though. Love you.
55. I have always wondered how lucky I am to have found such a gentleman like your brother. I had to realize that it’s because he has a sister. I cherish you, dear. May God grant you exceptional peace, as you clock this milestone. Happy birthday.
56. You’re such a wonderful person, and you deserve a lot of happiness, peace blessings, good health and whatever you can think of. These and more shall be your portion, in Jesus’ name. Happy birthday to you, sister.
57. Your humility has inspired me to become a better girlfriend, and I’m sure if I continue this way, my marriage will be one of the best. Thank you for being such a great inspiration. May God lengthen your life. Happy birthday.
58. Your humility is second to none. You’re always very respectful no matter what is happening. I have learnt a lot from you, but the biggest thanks go to your parents. May God keep you to do more. Happy birthday to you.
59. I see how perfectly you run your home, sister. So many things to learn from you. I’m glad I met your brother, because I may not have been lucky with this kind of opportunity. May God bless you with more wisdom to function well. Happy birthday to you.
60. I have seen you cry, I have witnessed you cry. I have seen you lose, I have witnessed you win. How you still press on without letting any of your losses have a toll on you is something I admire. Better days are here already, sis. Happy birthday to you.
61. You may be my boyfriend’s sister, but you’re the one with who I am totally transparent. You help me with my emotional baggage. You have always been there for me. May you never lack help when you need one. Happy birthday.
62. You have been my adviser from day one. You never get tired of my excess complaints about your brother, instead, you calm me down and assure me of great things ahead. Here’s wishing you huge joy and endless happiness. Happy birthday.
63. I have heard so many bad remarks about boyfriends’ sisters and sisters-in-law. I’m thankful that I haven’t experienced any of these things, all thanks to you. God bless you, dear. Happy birthday.
64. You have always wished for an amazing man who will make you happy and feel comfortable. I have seen you question your sanity because of this. Don’t worry, this year, an amazing man will locate you. Happy birthday sister.
65. Ever since you accepted that I become your brother’s girlfriend, you have been my sister. I don’t go to anyone else but you, whenever I need clarity on some things. Thanks for always being reachable. God bless you. Happy birthday.
66. You are very special and dear to my heart. Life hasn’t been easy before I met you and your brother. You guys are a product of good parenting, and I’m glad you’re influencing me. May God grant you many more years. Happy birthday to you.
67. You are someone that understands me perfectly, even more than your brother. You’re not just my boyfriend’s sister, but my sister and friend. May everything you want to in life be available to you. Happy birthday.
Boyfriend’s Sister Happy Birthday Quotes
You deserve more than a happy birthday quote, but since I am not around, just make do with this. Thank you for being a friend and sister. My boyfriend tells me so much about you. Happy birthday.
Lovely songs to sing for your boyfriend’s sister on her birthday.
68. I can’t really explain what you have added to my life. One thing I know is that you are a very good person. We are grateful to have you in our lives and love you dearly. Happy birthday.
69. Your presence always comes with beautiful gifts. I get to shop more than I can, on a normal day. You have a way of spoiling me, though. I’m grateful for everything you do. Happy birthday, my sister.
70. I wish you more love and more blessings because you deserve to be loved and blessed. I can’t wait for you to become my sister-in-law. We are going to be the perfect team ever. Happy birthday to you.
71. I know I am lucky to have your brother in my life, but guess what? Your boyfriend will be the luckiest to have you in his life. You’re so full of love and kindness. Happy birthday, dear. Wish you good luck.
72. I may not tell you this enough, but I love and appreciate you a lot. You’re always there every step of the way. You’re never tired of my many demands. I love you big. Happy birthday to you. Wish you all the best.
73. Life hasn’t been fair to me, in terms of friendship. Not until I met you, you swept me off my feet with how loving you are. I am glad I made the right choice; your brother. I wouldn’t have met you, if not for him. Happy birthday to you.
74. You appreciate everything I do for you, no matter how small. You’re a very good lady, and really, you deserve all the best. May your Prince Charming cone for you soon. Happy birthday, dear.
75. Ever since your brother introduced me to your family, you have been up and doing because of me. You never want to hear that I lack anything, you’re at my doorstep with that thing. What would I do without your love? Happy birthday, dear.
76. Who else deserves the biggest birthday party, if not you? You make everyone happy genuinely and see the reason to keep on going, no matter how discouraged they feel. I wish I could just buy you everything in the world. Happy birthday.
77. At first, we didn’t click, and so I wasn’t expecting us to get along like this. All thanks to you. This has only got to show how peaceful and sweet you can be. Happy birthday to you. Where is the party venue?
78. On this special occasion of your birthday, I wish that you can be surrounded by all the people who love and appreciate you. May all your greatest wishes come true. Happy birthday to you.
79. You have always been very friendly to me, even when all I did was look away. Thank you for taking me as your friend. From the bottom of my heart, I wish you a peaceful and successful life. Happy birthday.
80. On this day, I wish you lots of love and happiness than your heart can contain. I just want you to know that you are loved, and I will do anything to make you happy. Have a beautiful birthday celebration.
81. I wish I could see you and congratulate you on the start of a new year, but unfortunately, I cannot be there. However, I want you to know that you have all my love on this special day of yours. Have a happy birthday.
82. I know that we are just getting to know each other, but I think I like you already. I just want us to be good friends, even when I am no longer with your brother. Happy birthday, dear. Cheers to the good life.
83. I want you to know that I consider you a very good sister. You have a very special place in my heart. Make sure you go out and spoil yourself today. I love you, dear. Have a blast.
84. I want to wish you many happy returns of this day. May you never get tired of being a positive influence on people’s lives. I’m your biggest fan, and won’t stop rooting for you. Happy birthday to you.
85. On this day, I have so many wishes for you, but first, I wish that all the happiness and love you spread come back to you in multiple folds. I’m super happy for you. Have a good one, dear.
86. I am just here wishing that you go out and at least treat yourself to something things you love. You work so hard, sis. Please, take time out today. You will enjoy it. Happy birthday to you. Long life and prosperity.
87. I know you already have money, but I wish that your hard work continues to pay off so you can have more money. Thank you so much for being a part of our lives and bringing us joy and happiness. Happy birthday to you.
88. I feel so bad that I am not there with you. Work won’t just allow me to be. I hope that you treat yourself to something very special today because you deserve it. Happy birthday dear sister. Have a blast.
89. I want to thank you for taking good care of my boyfriend whenever I am not around. You are a very good person, and be sure I will make it up to you. Thanks so much for everything. Happy birthday.
90. No matter how hard things get, your sincerity is always very intact. I am yet to see a lady as loyal as you. Thank you for teaching me how to stand up for myself. Have a happy birthday filled with much happiness and joy.
91. Even though you’re not my sister-in-law yet, I know that you are my sister, and you will always be, with or without your brother. Thank you for all these years of great memories with you. Happy birthday, dear.
92. Because you give out so much happiness, I hope that pure and undiluted happiness never leaves your abode. I’m grateful for your sisterly love. Happy birthday to you.
93. I know today is going to be different from all other birthdays you’ve celebrated because it’s going to be a house full of all the special people in your life. Yes, we all are turning up for you, because you deserve it. Happy birthday to you.
94. Thank you for being my confidant and go-to person any time, any day. You have been there for me as a sister. I’m sure your brother doesn’t know we are this close. The day he finds out, he might accuse me of wanting to snatch you away. Happy birthday to you.
95. You have completed another beautiful year successfully. I’m super proud of your achievements in the last year. Looking forward to witnessing more. We’re lucky to have you in our lives. Happy birthday to you.
96. It’s another year again, and I’m still very much happy with you, just like the first day we met. Thank you for bringing us joy more than our hearts can contain. May this new year bear you good fruits. Happy birthday.
97. I have learnt so much from you than I have from my biological sister. I just love the way we vibe without hiding anything from each other. Thank you for always coming out plain. Happy birthday to you.
98. So many times, you have given and shown me the true love of a sister. Telling you thank you for all you have done is too little. In all, I am very grateful. Happy birthday to you. Wish you all the love and peace. Have a wonderful birthday.
99. I just wish you could have all the special people in your life around you today, it would have been too beautiful. Still, find a way around making yourself happy today, because only you can give you true happiness. Happy birthday.
100. Happy birthday, pretty lady. You are a very close person to my heart. You have such a very big heart. May God make this day a special one for you. Happy birthday to you.
Hello there! I hope you had a nice time reading the birthday wishes for boyfriend’s sister up there. Feel free to send any of them to your boyfriend’s sister, and you might just graduate into a wife soon.
Kindly share with people you love as well and don’t forget to keep the comments rolling. Thank you.