You were just in the living room watching tv, you then heard the front door open and you looked to see your Brother with a girl

"Hey, this is my bestfriend scarlett. She will be staying here for awhile" your brother says while smiling

"Its nice to meet you, Dear!" Scarlett smiles at you as well

your brother then start walking to the kitchen "Hey I'll be making dinner, you guys can just talk!" Scarlett looks at you

"So uh, your hes sibling?"