15 Step-Sibling Instagram Captions for Your Family Photos

Will Ferrell and John C. Reilly in Step Brothers
Step Brothers via Columbia Pictures

"Step-siblings by chance. Friends by choice."

Step-Sibling Instagram Captions

Want to welcome your new step-sibling to the family, but not quite sure how?

A thoughtful Instagram post dedicated to them is definitely the way to go.

Once you have the image picked out, scroll below for some kind and caring step-sibling captions that'll best compliment your post!

A post shared by Zendaya (@zendaya) on

•"Step-siblings by chance. Friends by choice." -Unknown

•"We aren't step or half, we're simply family." -Unknown

•"I smile because you're a part of my family." -Unknown

•"Two families blended perfectly together." -Unknown

•"You wouldn't even know our family is blended." -Unknown

A post shared by Gigi Hadid (@gigihadid) on

Step-Sibling Captions

•"Our puzzles pieces fit together to make a whole family." -Unknown

•"You're the sibling I never knew I needed." -Unknown

•"World's most awesome step-sibling." -Unknown

•"The only steps in this house are the ones going upstairs." -Unknown

•"Family is family." -Unknown

A post shared by Lili Reinhart (@lilireinhart) on

•"Don't mess with my step-sibling." -Unknown

•"Did we just become best friends?" -Step Brothers

•"On this day, two families became one." -Unknown

•"Together we make a family." -Unknown

•"Family is not defined by your genes." -Unknown

A post shared by camila mendes (@camimendes) on