A Sibling Threesome

Once again, we were home eating dinner bored out of our minds. My brother Adam is 18 and we live with our grandmother along with my twin sister Rachel. We're 19 years old and the 3 of us live with our grandmother because both our parents passed away about 5 years ago. Grandma is 65 and in great shape for a woman her age. The only thing that's out of the ordinary is that's she's deaf. When we went to live with her, our grandpa was still alive, but he's since passed as well so now it's just the 4 of us. We all get along great and help grandma as much as we can. Adam just graduated high school and both me and my sister work at the local bank. One day Adam told us something that made us turn a little devious.

He confessed that he accidentally saw grandma naked and now he sees her naked regularly. He told us how one day he told her he was leaving, but at the last minute his plans got cancelled so, he went into his room and started watching YouTube instead. He said he heard something coming from grandma's room, so he went to investigate. When he opened the door, grandma was lying on her bed, naked and masturbating. We didn't believe him, but he insisted he was telling us the truth. He also told us he now regularly watches her masturbate. Adam wanted us to see for ourselves, so we came up with a plan.

Adam knew her "playtime" schedule, so we made our plan. We both took a personal day from work and stayed in Adam's room. Adam told her he was leaving, but then came back into his room with us. It didn't take long to hear the noises coming from her room. Because grandma was deaf, I guess she didn't know how loud she was being. The three of us crept down the hall and Adam gently cracked her door open. Sure enough, she was completely naked and masturbating on her bed. Because of the position of her bed, she would have to turn her head pretty far to the left to actually see the door.

She was so into herself at that moment, there was a slim chance she was going to be looking around. Watching this 65-year-old woman masturbate was getting me a little damp in my undies. I looked at Rachel and she was smiling ear to ear. I said, "This is making me so fucking horny right now, how about you?

Rachel said, "Oh yeah, I'm dripping." We quietly laughed and watched Adam as he shook his head.

I said, "Aww, little Adam embarrassed?"

He replied with, "Hell no, I go whack off every time I watch her." We both laughed, and then our attention went back to grandma. She had a vibrator and was using it pretty well. All of a sudden, her moan got pretty loud, and she started convulsing on the bed, we watched as our grandmother had an orgasm. As soon as she finished, she shut the vibrator off, so we closed the door and ran back to Adam's room. Once we were in, we locked the door and caught our breath.

I said, "Holy shit, that was so hot watching her, but now I'm horny as fuck."

Rachel chimed in and said, "I know me too, damn, for an old lady, she really went at it with that thing." Then she said, "I need to do it too, I'm so fucking horny."

Adam said, "well you can't leave the room or she's gonna ask why you guys are home, I also have to let her know that I'm home, so she doesn't wander in here." Then he said, "Hold on, I'll be right back." He left the room and was gone for about 15 minutes. When he got back, he told us he went outside and walked back in when he saw her in the kitchen through the window. He told her he was going to take a nap. He locked the door and now we were safe in his room for the next couple of hours. Rachel said, "ok, we're all horny as shit, how are we going to take care of ourselves, we can't go out into the bathroom, but I'm telling you, I want to use what I just saw while it's fresh in my mind."

I said, " I have an idea, Adam, how many blankets do you have in here?" He told me one in his closet and the one on his bed. I got up and got the one out of the closet, then I pulled the one off his bed. Rachel was sitting on the floor, so I draped one over her. I sat next to her on the floor and covered myself with Adam's bed blanket. I said, "There, now we have our privacy, and we can take care of business without anybody seeing."

Adam said, "Uh, excuse me, what am I supposed to do, sit here and whack off with you two watching me?" I told him he had 2 choices, yes, he could whack off while we watched him, or he could use the sheet on his bed. He said, "what do you guys want me to do?" Adam just was 18 and is obsessed with working out. He really has a great body, he's tight and fit. In my head I wanted to watch him, but I wasn't going to say that out loud.

I should have known Rachel would say something because she's not the least bit shy. She said, "You don't have the balls to whack off while me and Raven watch." He stood up, pulled off his pants and shirt and stood there wearing only his boxer briefs.

He said, " ok loose what you girls are wearing, and I will." I looked over at Rachel. She shrugged her shoulders, reached under the blanket, pulled off her pants and then threw them across the room. I thought that was ballsy enough, but she reached back under and out came her thong. Adam said, "Nice, now you Raven." I decided, what the hell, they were both ok with it, and this would be an amazing masturbation session. I reached under and took off my shorts and thong, then threw them over by Rachels. I could already see a bulge in Adams briefs, and I was getting wetter by the second.

Naturally Rachel said, "Nice bulge, you gonna show us or go hide under the covers?"

He said, "I told you if you guys got naked so would I." He slid down his underwear and exposed his great looking dick. Then he said, "Ok, happy? " He made his way to the bed, climbed on it and sat with his back propped up on pillows. His dick was standing straight up. He grabbed it and started to jerk it up and down. I was amazed our little brother was jerking off in front of us, until I noticed he was staring directly at Rachel. I turned to look at her and there she was, sitting there, no blanket and her legs spread open rubbing her clit. I was shocked for a few seconds until I realized how hot this was going to be. I tossed the blanked aside and joined my sister and brother.

We were all going at ourselves pretty good and I said to Rachel, "Are you really comfortable?" She said she wasn't, so I said to Adam, "move to the middle, we're coming up there with you." He moved to the center of his king-sized bed, and we got in on each side. I said, "imagine if grandma walked in here right now?"

Rachel said, "didn't you see her have an orgasm with her toy? She would probably tell us to move over and join us." We all giggled and went back to concentrating on ourselves. I was watching my brother and sister, and it was bringing near my first orgasm.

I was so close, but I managed to say to Adam, "If you cum, how fast can you do it again?" he told me depending what porn he was watching it usually only took a few minutes to get hard again. I said to Rachel, "Do you want to watch him cum as bad as I do?" I could see she was close too, but she managed to nod her head. I said to Adam, "Watch me." I fingered myself with 2 fingers until I started to spasm in a powerful orgasm. Adam started shooting his cum everywhere while watching me. He just kept cuming and cuming. I watched as Rachel reached over and started to play with his cum as she fingered herself. She was smearing it all over his tight stomach and eventually she grabbed hold of his dick and finished pumping it for him until he finally stopped cuming.

She let out a pretty loud, "Ohhh" as she came seconds later. We all sat there catching our breath. Rachel finally said, "Bro, you really cum, don't you?" He told her that was the most he ever came. Then Rachel said, "I hope you have more in there, me and Raven are just getting started, right?" She looked at me and I nodded my head.

I said, "I think I know a way to get him hard again." I climbed out of bed, pulled my shirt over my head and took off my bra. I was finally naked, and it felt amazing. Not to be outdone, Rachel got out of bed and did the same thing. We were standing next to each other naked for our little brother to check out. We are both very athletic and have tight bodies. The thing we both got screwed on, was tits, we were both A cups. I asked Adam, "so, is this what you imagined every time you jerked off thinking about us, and don't try to deny it, we know you think about us."

He said, "I won't deny it at all, you two are always what I'm thinking about when I jack off at night."

I said, "ok, we need to get you hard again, so tell us what you think about in your fantasies, what do you think about when you think of us?"

He suddenly looked shy and didn't say anything. We both encouraged him to tell us because not only would it make him hard again, but it's also going to make us horny again too. He finally said, "Promise you won't be mad?" We assured him we wouldn't, Rachel even admitted that she thought about him too when she masturbated. I think that helped because he said, "ok, its usually a threesome with all of us." My pussy instantly got wet again, as he continued, "I'm usually doggy fucking one of you, and the one I'm fucking is eating out the other one."

Rachel said, "Now I'm wet again." I smiled and told her I was too. Rachel being Rachel, climbed on the bed next to Adam, got on all fours with her ass and pussy facing him. She said, "like this?" His eyes were locked in on her cute ass and pussy. He nodded his head, and I saw his cock start to grow again. Rachel said, "now tell me exactly how I am in this threesome fantasy, is this how you like it, or like this?" She lowered her arms, and her ass was sticking straight up. He told her exactly like that. Then she said to me, "want to fulfill his fantasy?" I felt like my pussy was dripping, I was soaked and horny as fuck! I got onto the bed, laid on my back in front of Rachel and opened my legs. They were both looking directly at my pussy for the first time.

I knew Rachel wanted to go down on me, so I scooted down a little until my pussy was directly under her. I said, "Here ya go Adam, this is as real as it gets." He knelt behind Rachel and just stayed in that position. I said to my sister, "He's not going to make the first move." That was all I had to say. I watched as Rachel lowered her head between my legs and she started to kiss my lower belly. She started going lower and lower until she was actually lightly kissing my pussy lips. I raised my knees and opened my legs wide. Her tongue found the opening and she pushed it right in. I've had sex a few times, but nobody has ever eaten my pussy. It was amazing! I laid my head back and just enjoyed what was happening.

A few minutes later I felt Rachel's head going back and forth. I looked up and saw that Adam was fucking her from behind. With each push he gave her, she let out a small moan. I was so turned on watching my brother fuck my sister while she was eating me that I started cuming again. My sister knew I was cuming and she made her tongue dance on my clit. I was spasming all over that bed, but she never stopped. I got so sensitive that I grabbed her head and pulled it up. She had such a look of ecstasy on her face, she was enjoying every inch and thrust of her brother's cock. She looked at me and was barely able to say, "I'm cuming on his dick right now." Her head dropped and she had a massive orgasm.

When she too sensitive to continue, she leaned forward, and Adam's dick slipped out. She turned over and laid next to me. He was still kneeling on the bed with a raging hard on, it was easy to see he needed relief. I was still lying there spread eagle, so I reached down and started to rub my clit. I looked at Adam and said, "come fuck me now." He leaned forward in the missionary position and entered me. He was getting pretty deep, and it felt amazing. I grabbed his ass and pulled him into me with each thrust. He fucked me for a few minutes with my sister watching us. I could tell he was getting ready to cum, so I told him to come out of me.

He was kneeling in front of me, so I let him watch as I started rubbing my clit. I told Rachel to join me, and he just stayed there, on his knees, watching both of his sister's play with themselves. I said, "cum all over us right now." He was furiously pumping his cock, and just to help him out, I started to finger myself. I guess that was all he could take, he started shooting cum all over us. It was all over our tits, some hit my face, my arm, everywhere. Being covered in my brothers cum made me have one last massive orgasm. I couldn't help it, it just started happening. While I was in the middle of cuming and being covered by my brothers cum, Rachel leaned over and kissed me on the lips. She must have had cum on her mouth because I could taste it on her lips It finally stopped raining cum and the three of us laid on the bed to catch out breaths.

I said, "Did all this happen because we watched grandma playing with herself?'

Rachel said, "Yup."

I said, "Well then, thanks grandma." We all laughed, and I added, "Next time we should invite her." I laid there a few seconds then I asked Adam, "would you fuck grandma?"

He said, "I just fucked both of my sisters, now you want me to fuck my grandmother?" He laughed and added, "I would, she's probably so fucking horny it would be an amazing fuck."

We both agreed with him, and I said, "I would love to jerk you off all over grandma's tits. I've seen them, they are still amazing." Once again, we all agreed on both of those things. We cleaned up as best we could, using one of Adams tee shirts to wipe our pussies and his cum that was all over us. Rachel and I got dressed and waited. Adam went out of his room and went to see where grandma was.

He came back in and said, "you won't believe me, but Shes masturbating again. We laughed and then snuck out of the house. We didn't know where to go since we desperately needed showers, so we drove down the street and sat in the car until it was time to go back home. While we were sitting there, we talked about what we did, and how much we enjoyed it. We knew Adam would be ok with doing this regularly, so we made plans for our next "playdate", now all we needed to do was to tell Adam.