I took out a vial of poison I'd been hiding and poured it into the drink I'd been preparing for my sister. I turned around and handed it to her. She smiled warmly at me as I set my own mug down onto the coffee table.

I looked around to make sure no one was there. I wanted to at least spare my parents the sorrow of watching their favourite child die in front of them.

I'd been living under my sister's shadow for too long. My parents doted on her because they thought she was the "perfect" child. But they weren't wrong… my sister had perfect grades, and she was compassionate and friendly to everyone, which made her popular at school.

I felt a pang of guilt. My sister had been nothing but kind to me. She'd been the only person in my family to actually care about me. Was this really what I was going to do to the only person who'd ever supported me?

I steeled myself. My sister was the root of all of my problems. The only way I could ever fix my miserable life was if I got rid of her. Once and for all.

I took a deep breath, trying to calm my nerves. I raised my mug and watched as my sister did the same.

I slowly drank the coffee in my own mug, keeping an eye on my sister as she drank hers to make sure she drank it all.

She finished her mug and put it down with a satisfied smirk. I felt confused. Why hadn't the poison acted up yet? It was supposed to be instantaneous.

"I honestly can't believe you tried to poison me. Wow. So much for family, huh.", my sister sighed in mock disappointment.

Feeling drowsy, I set my mug down onto the coffee table sloppily. My stomach hurt, and I felt weak. I coughed and I felt like vomiting. My sleepy brain slowly put the pieces together and my eyes widened in horror.

The Perfect Child