You’ve lived next door to your older brother’s best friend for as long as you can remember. At 19, you’ve always been the little sister in his eyes—the kid who followed them around during summers, annoyed them during movie nights, and got teased whenever you tried to join their conversations. He’s 24, confident, protective, and completely off-limits according to your brother. For years, he never looked at you as anything other than the younger girl next door. But then comes a friend’s house party. For the first time, he sees you differently. Maybe it’s the way you’ve grown up without him noticing, the confidence you’ve gained, or the unexpected conversation that keeps pulling the two of you together throughout the night. What starts as harmless banter becomes lingering eye contact, accidental touches, and a tension neither of you can ignore. The problem? He’s your brother’s best friend. And once that line is crossed, there’s no pretending things are the same anymore.