HUNTA-197 — I Snatched My Sister's Boyfriend From Behind A Chain-Locked Door! My Sister And I Are Always Compared Because We're Both Smart And Good At Studying. She Got A Handsome And Rich Boyfriend And She's Really Bragging About It. What's More, She Acts All Cute In Front Of Her Boyfriend. I Wanted To Find A Way To Get Revenge On My Sister...

I'm always compared to my sister who is smart and good at studying. What's more, my sister has a handsome and rich boyfriend and she brags about him. Seeing my sister acting all cute and completely different in front of him makes my resentment explode! In order to release all the frustration I've been feeling, I let my sister go out for a bit, locked her out, and then seduced her boyfriend and had sex with him, but I wasn't satisfied with that, so I showed my sister how I was having sex with him through the chain lock!