Fun with sis

For those who have read some of my other stories, one of my favorite ways to masturbate was to use my mom's back massager. It was a big clunky thing with a metal body, it was heavy enough to need two handles to use it, it had a big, soft vibrating head that was covered in vinyl. I found it quite by accident. Being curious I found it one day just going through my mom's closet, stuffed in a plain brown box way in the back. From the time that I found it, I was hooked on it, I had so many wonderful orgasms with that machine. Pretty much any time I knew I had a little time to myself, I was playing with that thing. Even if I only had a very short window of opportunity I had that thing out. It was almost a daily thing for me. A lot of times I'd use it even if I wasn't completely alone. My sister and I were never very close, when my folks were away, she mostly stayed in her room and I stayed in mine which were right next to each other. Every Saturday morning both my mom and dad would go out to work and this was a favorite time for me to grab the massager and have some fun. I would lay in bed and wait to hear the last car pull out of the driveway. As soon as they were gone, I knew it was time for fun. I'd lay in bed awake sweating, my heart racing and my cock hard and throbbing because I knew what I was going to do. That toy didn't make a lot of noise and I knew I could be quiet when I played so as not to disturb my sister. The only tricky part was sneaking down to my parents room which was down the hall to get what I needed without my sister hearing me, but I had done it so many times before and had never gotten caught, so I never had any reason to worry. So I'm laying in bed awake on a Saturday morning, horny as hell. Waiting to hear the last car leave, I was ready, I knew what I was going to do. And then I hear what I've been waiting to hear. Just a little after 8 I hear a car door slam, so I jump out of bed and carefully pull the shade aside and I see the last car leave, the driveway is empty and now my fun can begin. I'm still in my pj's but as a habit, I throw on my bathrobe. I tiptoe to the door and crack it open to make sure the coast is clear. Her door is closed, perfect! She is still in her room. The is the only risky time as I make my way to my parents room, once I'm there, I'm safe. I very quietly tiptoe down the hallway and make it without her knowing. Once I'm there, it's a shopping spree. First stop is my mom's night stand to grab her tube of lubricating jelly. She likes the warming kind which I love on my cock, makes it feel so warm and tingly. Next stop is their bathroom for a wash cloth and a towel. The last stop is her closet to grab the toy. I would always just take it out of the box and carry it with me, I had never been caught so I didn't really worry about it. I had all I needed, so it was time to make my way back to my room. I started to tiptoe back down the hall to my room, and then I heard her door open, damn.. I knew I was caught, I had the massager in my hand and there was no hiding it. "What are you doing," my sister asked. "oh nothing " I replied. "What is that thing?" I replied, "oh just something I use that feels good." My sister ask, "well how does it feel good?" I thought for a second, not knowing how to reply. "Well, I like to use it, you know, down there." "Oh, you mean like masturbating, you do that?" "Yes, don't you do it?" "No, I've heard about it, but I've never tried it. Is this what you do every Saturday?" I suddenly froze. "You could hear me?" "Yes, I hear you every Saturday morning after mom and dad, leave, I hear you sneak down to there room and come back and then I can hear this buzzing noise and heavy breathing and some grunting, I always wondered what you were doing, I came out because I was curious." "Oh, I didn't know you could hear me, I'm sorry." "That's ok, so what do you do with that thing?" "You really want to see?" "Yes." "Would you like to try it?" "Ok." We go to my room and I close the door behind me. "so what do we do first?" "Well, we get completely undressed, you do that and I'll set this up." "Ok." I pull the sheets back on my bed and throw the pillows in the corners. I put the towel down on the mattress and take the vibrator and put it upside down on the towel so the vibrating head is facing up and I plug it in. My sister gets out of her pj's, exposing her small but firm breasts, I can see her nipples are hard already. She slips out of her panties exposing her bush. Now it's my turn and I've got a raging hard on. I take the tube of lube out of the pocket in my robe and set it on the night stand and then I take my robe off and slip out of my pj's I can see my sister staring at my body. Now it's time to bare all and I drop my underwear. My sister gasped. "Oh my god, your cock is huge, I didn't know it got so big and so hard." "Yes" I replied. "Can I touch it?" "Sure." She reaches out and grabs hold, I thought I was going to shoot right there. "Wow, your cock feels amazing!!" "Having you touch it like that feels even better." "Really?" "Yes." "So what do we do now?" "Ok, first let me lube this up for you." I take the tube of lube and put a little on the vinyl pad of the massager and spread it around so it's nice and slippery. "Ok, you get on top and put your pussy on the pad, you can grind your pussy back and fourth as much as you want to and I'll turn it on and it will vibrate and it will feel really, really good." "Ok." She gets on top and sits down on the massager with her feet out behind her. "Oooh, it's warm and slippery, it feels nice." She starts to grind her hips back and fourth, "this feels really good." "Ok, are you ready, I'm gonna turn it on now, it's gonna feel even better." "Ok, do it." And I flip the switch on low. "Oooooooh my godddd, that feels fucking incredible." She moans as the machine rumbles to life. Her hips are rocking rhythmically back and fourth. "I didn't know this could feel this good." She's already starting to pant and her breathing is becoming a little more ragged, her chest neck and face is beet read, I knew she wouldn't last long. Her nipples were absolutely rock hard, I reach up and give them a squeeze. "If you think this feel good, just wait.." I could see her picking up her pace and I knew she was close. Her moans got louder and louder, almost screaming. "Oh, oh, oh, this is feeling really good, oh my god, what's happenning, oh..." And I witnessed my sister have her first orgasm. "Oh goddd!" She drove her pussy hard on to the massager, I held on to her so she wouldn't fall over. I felt her body seize up and I knew she couldn't take anymore, so I switched the massager off. My sister still panting, holding me tight, pushing her pussy hard on to the pad of the massager, I could tell her pussy was still spasming as her whole body would convulse. "Oh my god, what was that? What happened?" "Congratulations, that was an orgasm, was it good?" "Oh my god, that was amazing!!" "The best part is that most girls can do it as many times as they want, wanna do it again?" "Hell, yessss!!!" "Ok." I flipped the vibe back on, but this time I went for high speed, I knew it was gonna be big. "Here we go." As soon as I hit the switch, her eyes rolled back in her head, she threw her head back and grabbed her breasts. "OHHHHHHHHHHHHH!!!!" I knew she was in an instant orgasm right then, there was pussy juice running down the sides of the massger. Her whole body once again convulsed with each orgasmic contraction, the sweat is running down her chest. Once again she's thrusting her pussy as hard as she could into the pad of the massager. "Ok, ok, ok, please!!!" I knew she couldn't take any more at this point. I turned the massager off. Still breathing heavily, she could barely mouth the words "oh my god that was fucking amazing!!" She collapsed backwards on to the bed. I could see her pussy was so swollen and red, still twitching with minnie orgasms, her clit was so swollen and hard it looked like a small cock. I laid next to her and she looked into my eyes and just said "thank you." "You made me feel so good, but this was supposed to be your play time, I want to see you play." "Ok, I guess it's my turn then." We both got up and she sat in front of my, and I looked at the pad of the massager, absolutely soaked, dripping with lube and girl cum, at least I didn't need any more lube. I got on top and mounted the massager, I knew I wasn't going to last long. "I'm so horny from watching you right now, I'm probably not going to last very long." "That's ok, just enjoy it, I want to see what you've been doing all this time." I let her control things, so she flipped the massager on low to start and once again the machine came to life as I hump it. "Oh, oh, oh, I'm not gonna last, it feels too good, " as the vibrations coursed through my dick and balls, all the way back through my ass. "Ok, ok" I could see my sisters eyes get wide and then she got this naughty grin on her face and she flipped the massager on high and that sent me over the edge. "Oh god, oh god" I moanded as I sent wads of cum flying, the first shot landed on her stomach. "Wow" my sister gasped. "Oh please, I can't take it." "Just hold on tight, it will be over in a minute." My sister knew that I couldn't take it anymore and flipped the massager back to low. "Oh, please, turn it off, it's too intense." "Ok." And she switched the massager off but even though the vibrations had stopped, my cock was still throbbing. My sister looked at me and reached out and gently grabbed hold of my cock and started to massage it a little. "That was amazing, thank you so much." I collapsed on the bed next to her still out of breath. "No, thank you, I'm so glad we did this together. Do you want to do it again sometime?" "Oh yeah, definitely." I grabbed the wash cloth and wiped off the massager and set it on the floor and we both fell asleep together. That may have been my first experience with my sister, but it wasn't my last, we did so much more together over the years.