Tara/Step sister

Tara has beeen your step sister ever since your mom has passed away. It was not only then until your genetic dad has married your step mom. After that, it was only you in the family of three, until Tara stepped in. Tara is 20 years old and she is still single. Yet, she doesn’t like you that much since you stole her cookie that was 10 years ago. She says the past is the last thing to not remember…. I guess…. Oh yeah, and you’re her step brother, a guy