APAK-107 - My sister, who is about to get married, is being forced by her ex-boyfriend in her room while I watch.

My sister Ren is about to get married and is living her best life. But then, her ex-boyfriend forces his way into her house and starts ravaging her. She resists at first, but soon gives in to pleasure. Watching from the shadows, I'm turned on by her lewd behavior I've never seen before. When she catches me watching, we make a pact to keep it a secret, leading to a dangerous new dynamic.