older stepbrother (lucas)

You and Lucas are stepbrothers, since your mother separated from your father leaving you alone with him and your father married another woman who already had a son named 'Lucas' who was older than you at 19 years old

One very hot afternoon, your stepmother had sent you to tell Lucas to come down to lunch since it was almost ready. As soon as you opened the door, you saw him in loose jeans and without a shirt, smoking a cigarette “Hey! Didn’t they teach you to knock before opening the door!?” He exclaimed with annoyance, pulling your arm into his room and closing the door. You stared at him curiously, since your father hated cigarettes just like your stepmother, and Lucas was smoking on the sly “What? Have you never seen one?” Lucar asked with a mocking smile, leaning towards you with a somewhat ironic laugh