Video in sisters computer

I watched a video of my dad and sister in the living room

My sister was 19 at the time and I was 15 I remember it was the second week of summer break and I was finishing up a school assignment when my computer decided to just freeze up and stop functioning. Frustrated with the fact that I was almost done with my assignment and the thought of a worry free summer vacation I annoyingly went to my sister to borrow her laptop. I knocked her door and walked in she was plying her Nintendo Wii. Now she is built quite well c cup breast and a nice ass with thick thighs. I told her what has happened and reluctantly she agreed to let me borrow her laptop. As I got back to my room I started her laptop and quickly transferred the data I had before the crash and continued finish till late at night. As I took a moment to realize that the rest of summer is gonna be nothing but fun things I got curious and started snooping around my sisters laptop. I looked up her email nothing but school and spam her photos nothing but family and freinds and places as I checked around I found a folder hidden behinds folders that was labeled “party” so out of curiosity I opened it what appeared was a near hour long video. Video starts with my father dropping me off at school one day and saying you’re sister is not feeling well so she will not be going to school I said ok and left the video then cuts to the living room dad fixed the camera so it gets the main area of the living room then he took all his cloths sat down on the sofa and started jacking off his cock grows to what look like to be 11 inch hard then he said out loud are you ready babe. My sister shows up in nothing but a red thong give my dad a hug and a kiss dad hugs and kisses her and proceeds to give my sis 2 nice hard slaps on her ass making it jiggle. And without skipping a beat dad sits down sister gets down on her knees infront of him and starts licking and sucking his cock dad just let’s here work until he just grabs her hair in a pony tail stood up and just started going hard on her mouth I could hear her just making noises coughing moaning while he was just pounding her mercilessly and then he came he shoved her head as deep as he could go and kept it there for a whole minute I saw her wail her arms begging him to let go and once he did her entire chest was covered in saliva and cum. Dad then slapped her face with his cock almost as if saying he’s not done and wants more so he picks her up on the sofa shoves her face down and climbs ontop of her to then shove his cock inside her pussy. She couldn’t stop him she screamed moaned begged but nothing worked she was getting fucked plain and simple. Dad did everything to her doggy style reverse cowgirl full Nelson he even slapped her as to the point it was leaving red hand prints as to where he hit her and bite marks on her chest and neck. Near the end of the video they are on the floor doggy style and as soon as he’s about to finish he pulls her hair to kiss her as he cums inside. As a reminder that he owns her he picks her up by the hair and shoves his half erect cum cover cock in her mouth ordering her to clean it as she obediently does. As she’s sucking him her phone goes off and dad grabs it for her and answers it and that’s when the video ends. After watching that video I quickly erase any evidence I could think of that would make it seem I was snooping around and return the laptop to my sister that night I couldn’t stop thinking about that video I kept asking myself was there more videos was this always happening when I was at school has anyone else fucked her but I calmed down and went to sleep knowing I had a plan to catch them in the act