After our night together, things went back to normal between my sister Rachel and I. We talked about it and decided it was a one time thing due to the emotions of the situation. It was a couple of weeks before I saw her in-person again.
My girlfriend, Stacey, who's my age 23, was spending the week with me. It had been a few weeks since we'd seen each other so we spend Friday night having amazing sex. On Saturday, we were binge watching shows on Netflix and just cuddling with each other.
Around 4pm, my sister, Rachel, shows up. I was a little disappointed that she showed up because I was about to cook a great meal for me and Stacey. Stacey insisted that she stay for dinner and watch TV with us. They got along fairly well when together.
As I was cooking, I needed to go to the story for something. The girls were into a show so I went alone. It took longer than I thought at the store, about 45 minutes. When I returned, they were on the couch, both topless, kissing. They were too much into each other that they didn't notice me. I stood there in awe as I watched them for a few seconds. The contrasts in their bodies was so arousing. Both girls were in great shape, it was their breasts. My sister Rachel, having small breasts, A/B cup size with nice nipple compared to my girlfriend Stacey, who was a C/D cup size.
I watched for a minute until Stacey saw me. She screamed and tried to cover up. My sister soon followed. I could tell both were embarrassed being caught, not for what they were doing. Stacey was the first to speak.
"I'm so sorry. Your sister confessed what happened between you two. At first, I was mad and discussed but the more she told me, the more arroused I became. One thing let to another and now here we are."
I was surprised that my girlfriend would be with a woman but I coul see it with my sister. I was hard from seeing them and thinking what could happen next.
"Don't stop because of me. Please continue and maybe I'll join in."
They both hesitated for a second but I think both of them were so horny, they didn't care. They started to kiss and touch each other on the couch. I was sitting in a chair, watching. I took a blanket that was on the back of the couch and put it on the floor and told them they'd have more room there.
As they stood up, my girlfriend came over to me and took her shorts off. She then got on her knees and began to feel my hardon. She was about to pull my cock out and blow me until my sister said something.
"Don't worry about him, come over here with me."
We both look over and my sister is laying on the blanket, naked, with her legs spread open. Her slick pussy looked so good and my girlfriend must have thought the same thing. She left me and put her mouth straight on my sister's pussy. Rachel gasped then moaned as Stacey began to eat her out.
Stacey's ass and pussy were sticking in the air and I couldn't take it anymore. I quickly undressed, got on my knees behind Stacey and began to coat my cock with her pussy juices. With one push, I was all in. I went slow because I didn't want to blow my load too soon plus I was hoping to fuck my sister again.
My sister, Rachel, was the first to cum. I couldn't believe how quick Stacey made her cum. I guess my girlfriend knew how to eat pussy. Rachel said she was ready to fuck. They switched positions and I watched my sister eat out my girlfriend. I saw Rachel wiggling her ass so I knew she was ready. Just like with Stacey, she was so wet, I slid all in in one push. I fucked my sister a little harder than my girlfriend for some reason. I guess I wanted to show I'm the dominant sibling.
After a few minutes Rachel made Stacey cum. Rachel said she wanted to ride me. I got down on the blanket and Rachel slid my cock back into her and began to fuck me hard. Stacey climbed on my face and rubbed her wet pussy all over my mouth and tongue. I could hear the girls kiss and sucking each other's boobs. Rachel began to massage my balls and that put me over the edge. I came hard into my sister.
Once she could tell I was done, she climbed off of me. Stacey was quick to get between Rachel's legs to clean up the mess inside her. I just watched in amazement.
Once everyone was done, we all cleaned up and I finished the food. We talked about what happened during dinner and everyone enjoyed the experience. We watched some more TV before I went to bed. I believe the girls played a little more before Stacey came to bed with me.
Sadly, that was the only time the three of us played together. My sister found a boyfriend shortly after that weekend. Stacey and I role play some using Rachel's name. It helps spice up the sex. Maybe things will change soon?