Stepsister

Tom just needs a little time to get used to the idea that Mary will now be his stepsister.

I get on well with my stepsister but not with my stepmother.

My stepsister finished the last of the cranberry juice.

Mary is my stepsister.

Mary is Tom's stepsister.

No, Mary isn't my stepsister, she's my half sister.

He met his stepsister for the first time today.

Sami lived with his stepsister.

Sami heard about Layla's stepsister.

Sami has a stepsister.