How do I tell my roommates to use a different name around my parents?

For context, my roommates in my dorm quad are already best friends but I am coming in as an outsider. When they were introduced to me by our mutual acquaintance, I was introduced to them as Lee. However, my name is Layla and I only go by Lee at school. I think they know my name is Layla bc my instagram still says Layla. For reasons I won’t get into, my parents can’t know that I go by Lee. I need to explain to my roommates over text in a brief but casual manner that i need them to call me Layla if they are going to say my name while my parents are around during move in day, but I’m have trouble writing the text in a way that doesn’t seem weird or off in tone. Can someone draft a text for me?😭