I grew up an only child with parents that were very sexually active. When I was 18 I would listen to my parents having sex, and eventually would masturbate to their marathon sex sessions.
I would love to sneak up to their bedroom and watch them fuck. They rarely shut the door, I guess they thought with my room downstairs they didn't need to. They seemed to be into rough sex, and loved to talk dirty to each other, especially Mom. She was also a screamer, she would moan loudly and when she came she would scream out in pleasure.
One night has always been vivid in my mind because it started out in a fight. They were screaming at each other and really upset. I quietly excused myself to my room for the evening to avoid getting in the middle of the argument. Even downstairs I could hear them yelling, and I struggled to take my mind off the fight. After a while I heard them moving around, and then it sounded like they went into the bedroom, but I could still hear loud voices.
I decided to sneak upstairs to see if everything was okay. Coming up the stairs I heard Mom yell " fuck you," and as I looked into the bedroom I saw my dad slap my mom across the face. The look in her eyes was terrifying, and she charged at Dad, slapping him across the face. I was just about to intervene when Dad grabbed her, spun her around, and bent her over the bed, ass up. He lifted her dress, and slapped her bare ass hard, leaving a red mark. Mom screamed, but it was a different scream, almost like she liked it. Dad slapped her again, and she moaned, and arched her ass up.
Dad, in a low guttural voice said, "I will teach you a lesson you fucking bitch," and removed his belt and lashed it against her ass.
She squealed, and moaned "yes, teach me, punish me, spank me!" Dad slapped her a couple more times, then undid his pants, dropping them to the floor exposing his hard cock. He moved behind her and violently thrust his cock into Mom's cunt. She whimpered, and moved her ass back towards him, allowing him to go deeper inside her.
They fucked doggy style for a while, until Dad pulled out and ordered Mom to climb on top of him. As she stood up, Dad slapped her across the face again and Mom's eyes lit up.
"Get on the bed you fucking bastard," she said and pushed Dad down on his back. His cock was rock hard, and she grabbed it has she swung over him, and in one fluid motion buried the cock into her cunt. She started to ride him hard, and violently and started to talk really nasty. If he did not respond she would slap him across the face, and demand an answer.
They fucked for what seemed like hours, rough, violent and loud. They would slap each other, call each other names, all the time fucking like wild animals. Watching them I literally came in my panties without even touching myself, it was such a turn on.
That night was years ago, and since that time my parents divorced and my mom remarried. But the memory of that night came back to me on a recent visit to my mom and step-dad's house.
