no but she can act like it
The first answer to "Can your sister be your mom?" is correct. It would occur when a mother is unavailable and an older sister takes on the role of mom.
Another version is the true story of my family. My sister at age 19 had a child, the father of the child was long gone. My sister died when her baby was 8 months old, so my parents adopted him. Thy both worked full time and had a sitter for a few years, but the sitter got married and moved to another city. At the same time I was living in another state and planning to leave my job in a few months because I had a child due. So I took over the care of my nephew/brother. He moved in with me and my family at age 4 until he was in 18. This is a similar story in many families with different variations. Not only a sister can be your mom, anyone who is able can step in and be your mom.
The only possible way for your sister to be your mom would be for your mom and dad to have you and you're sister, then later your dad would leave your mom and marry your sister. But, she would only be your step mom.
The "sister" may have had a baby out of wedlock or as a teenager that her mother decided to raise. So grandma became "mom" and mom became "sister.'
Cousins
Because you are my brother or sister.
Justin bieber's half-sister Jazmin is from his step mom
No she is not his mom. She is his sister.
Tell your sister to do a prank on your mom and when she does mom will get mad and when sister says that you told her to do it you say i didn't say nothing to her shes making a lie to get me in trouble.
Your dad's brother is your mom's brother-in-law. He is not related to your mom's sister or her children.
a pigme is Zach pulcefur's mom and his cat his sister smells a pigme is Zach pulcefur's mom and his cat his sister smells a pigme is Zach pulcefur's mom and his cat his sister smells
I bought a card for your mom, dad, and sister.
Yes, she has a mother and a sister.
Your mother's sister is your aunt. You are her niece (if you are female) or her nephew (if you are male).
no because your sister has custody of you your mom doesnt have to know she is no longer your parent or gaurdian
Your Aunt