Harry: Harry sat smirking at the little 4 year old scolding at him. "Have her hwome by 12:00, and no touchy! If you touchy Y/N, I get mwad! And no one like me when I'm mwad! Do you understand mister?" Your little brother asked. "I understand." Harry smiled. "I promise your sister is safe with me." Your little brother smiled and ran out of the room. "REMEMBER NO TOUCHY!" He yelled. Harry chuckled before grabbing your hand and taking you out for the night.
Zayn: "HEY, Y/B/N! COME MEET MY BOYFRIEND AND BE SOCIAL!" You screamed at your 14 year old brother. "NO WAY ZAYN'S HERE!?" Your brother yelled back. Zayn chuckled as your brother practically flew down the stairs. He fell and stood up, flipping his hair. "Sup." He said. "Hey." Zayn said. "You wanna go to the mall and ill help you get a girl?" Zayn asked. "Please?" Your brother begged. Zayn laughed and grabbed his jacket and keys. "Have fun!" You said after they left.
Louis: "HEY! GET OFF MY SISTER!" You're 7 year old brother yelled at Louis hugging you. Louis laughed and stepped away, putting his hands up in surrender. You rolled your eyes and grabbed Louis by the collar of his shirt and pulled him towards you. "This is my boyfriend." You stated. Your brother stared at Louis before smiling. "Hi!" He said. Louis laughed and kneeled down. "Hi there." Louis smiled at him. "Will you play monster trucks with me?" Your brother asked. "I'll race you upstairs!" Louis said. Your brother ran all the way to his room giggling with Louis chasing him.
Niall: (his POV)
Y/N's brother angrily watched the TV. "Hey." He fake smiled. "Uh, hi." I waved. "Stop trying to steal Y/N away from me. She's already gone all the time." He said, not looking at me. "Oh buddy, I'm not trying to steal her. I love her." I said. "I should be the only boy in her life. She told me she'd love me forever and you're going to ruin that." He growled. "Nah, man! I promise. You can to our date with us tonight if you'd like." I said. "But Y/N will get mad." He looked at me. "So? C'mon." I nudged him. He smiled. "Okay."
Liam: you're 5 year old brother skipped around humming until he saw Liam. His happiness was gone and his eyes went wide. "STRANGER DANGER! STRANGER DANGER!" He yelled as he frantically ran around the house. You laughed and caught him. "This is my boyfriend goofball!" You said. "Oh. Hello Y/N's boyfriend! I don't know your name, but will you be my bestfriend?" He asked. "My name is Liam and of course ill be your bestfriend!" Liam laughed. "YAYYYY!" Your brother threw his hands up