(Context we are a white family)

One night when I was (13) my parents had told my sister (15) and I that we would have the house to ourselves since they were going to a resort for a couple of days and left us money for food and stuff.

Once they left, my sister said to me in a threatening manner "I'm inviting my boyfriend over so don't even think about telling mom and dad about it or I'll dis own you for real". I said damn ok? As long as you buy food (I didn't care, she always has friends over anyways)...

We ordered the pizza, ten minutes passed and the door bell rang. I went to check who this new boyfriend of hers she's been threatening me over was. I figured it was another kid at our high school but when she opened the door she greeted in a tall (22) Black college student named Damian who looked like a rapper.

We met, greeted each other and was actually very nice to me. (He even offered to go buy us the pizza) My sister meanwhile was mad dogging me as if I was going to say something ( I didn't care) So once she realized that, she stopped giving off those bad vibes and said to Damian "see my brother is to be trusted"...

I went to go game in my room while they hanged out in the living room watching TV and talked until the pizza finally came. After we finished eating, I had to wash all the dishes because who else but me. Meanwhile my sister came up to me and asked if I was down to drink some alcohol with them and have fun with no parents telling us no. I've never drank before so this would be my first time and I accepted. My sister told Damian to get the whiskey out (He brought a back pack) while I picked out a scary movie and she went to go get the shot glasses.

I took 4 shots, Damian took 7 and my sister took 8 (we were all visibly drunk especially my sister) 5 minutes into the movie, my sister went to change and get blankets for us (Was wearing a t-shirt and jeans) she than came out in a tank top showing off her perky tits and Nike pros reveaing her nice ass that made Damian order her to turn around to which he slapped and groped her ass and reeled her in the blanket (It was very dark and I pretend to be very interesting in the movie) They cuddled up in the blanket and were fidgeting the whole time soon after.

About 15 minutes after I heard slight moans from my sis which she was trying so hard to hide than I heard Damian moan "fuck your so fucking tight and wet". As soon as he said wet I heard gushing slimy noises for a few minutes as I pretended I couldn't hear anything (A scary movie with lots of silence for suspension lol) when they noticed I didn't seem to care they got more risky it seems as my sister eventually moaned out loudy "your so big daddy" and continued to make noise.

When I finally had the courage to look my sister was in reverse cow girl riding him and could see the them from the corner of my eye since our couch is a big double L shaped. They were supposedly watching the movie but than she started to clap up and down on his dick under the blanket and didn't care about me being there at all anymore especially the part where it was a complete silent scene. They soon took the blanket off and I saw my sisters tits bounce up and down and her ass clapp down on this guy's big dick.

I gave up on the movie as well and started to masterbate under my blanket yet there was no point of discretion as my sister seductively said "You like watching your sister get fucked huh?" When I said I do, Damian said "I'm close" so my sister went on her knees and finished him off with a blow job and gave my sister a facial. She looked at me and told me if she looked pretty. At that point she noticed how hard I was and decided to give me a head while she still had his cum on her face. I eventually ended up Cumming on her tits and face and she looked so hot. than we all went to bed after she cleaned up lol