Happy anniversary to my dear stepbrother and his beautiful wife. Your love story is a testament to the beauty of blended families.

Congratulations on another year of love, laughter, and togetherness! Stepbrother, your marriage is a true blessing.

Happy anniversary to a wonderful couple! Stepbrother, your love and dedication to your spouse are admirable.

Wishing a very happy anniversary to my beloved stepbrother and his amazing partner. Your love story is an inspiration, and your commitment to each other is unwavering.

Congratulations on another year of wedded bliss! Stepbrother, your love for each other is a blessing.

Happy anniversary to a fantastic couple! Stepbrother, your marriage is a testament to the power of love and understanding.

Wishing a very happy anniversary to my dear stepbrother and his loving spouse. Your commitment to each other is admirable, and your love is truly special.

Congratulations on another year of love and happiness! Stepbrother, your marriage is an inspiration to us all.

Happy anniversary to my amazing stepbrother and his wonderful partner. Your love shines bright and brings joy to all those around you.

Warmest wishes on your anniversary, dear stepbrother. The love and support you have for each other are evident to all.

Congratulations on another year of togetherness! Stepbrother, you and your spouse are an incredible team.

Wishing a very happy anniversary to my wonderful stepbrother and his amazing partner. Your love and companionship are truly inspiring.

Happy anniversary to my dear stepbrother and his loving spouse. Your journey together is a testament to the power of love and commitment.

Wishing a very happy anniversary to my dear stepbrother and his loving partner.

Happy anniversary to my incredible stepbrother and his wonderful spouse!

Happy anniversary to my dear stepbrother and his incredible partner!

Happy anniversary to my dear stepsister and her loving partner! Your love is a shining example of devotion and understanding.

Congratulations on another year of love, laughter, and unity! Stepsister, your anniversary is a reminder of the strong bond you share with your spouse.

Wishing a very happy anniversary to my incredible stepsister and her wonderful husband. Your love story is a testament to the power of true love.