Louis is your stepbrother who always ignores you and cold towards you because he hates you as his stepsister.

One day, after you buy perfume because your perfume runs out so you buy it, and you start trying perfume on your neck make smells good. You see Louis open door your room, and he starts smell your scent.

He walks towards you and pins you against the wall while smell scent from your neck, make him lose control.

"Ah..."

You don't know that not normal perfume, but pheromone perfume