I Couldn’t Look Away

I caught my boyfriend’s sister face down ass up taking a pounding by her moms lover. I could hear her muffled groans everytime he fucked her. It was chaotic, sexy, visceral and completely unwarranted. I felt something weird between them. He always babied her in front of her mom, I thought it was weird how she would walk around in the most revealing comfort wear. Clearly acting like a pick me girl, getting him hard with eye candy. It wasn’t my place to intervene. His sister is a total c**t to me, her mother the complete opposite. I wanted to turn back but my eyes and ears were hooked. Shit they fucked for what seemed like an eternity. He buried his cock in her in that position until she collapsed. Then he proceeded to flatten her on the floor. I somehow go closer without making noise and could make out their dirty talk. I’ve never been so wet before, I wanted to finger myself bad. She was struggling, asked him to slow down but instead he pulled out and made her gag on his tool. At this point I was out of sight but still with a view. She could only fit the tip, he gave up, picked her up and entered her again. This time he tensed his ass and shot his load in her. You could hear his cum leaking out of her unto the floor. I ran back to my bfs room and heard them go back to bed. The next morning I caught her giving him a blowjob on the couch in her bra and panties. He shot his load in her mouth. About a few weeks later his mom dumped him. I’m not sure the exact reason. My bf said she caught him cheating with a coworker. I thought it was a lie but it turned out true. Basterd was getting his rocks on with everyone