Well some background information about my family, is that we're all pretty tight. So I've grown up with knowing everything about everyone in my family. Also my brother is 16 a few years older than me and my sister is only 11.
Well one day I came home from school and my brother just went right upstairs to his room and closed the door. I didn't think anything of this since he often just goes upstairs and closes his door when he's going to work on his homework. So when I went up later I just went to my room which is next to his and I started on my homework. After about an hour my sister came home from her friends house and asked how long Dan had been in his room. Well I told her about an hour and a half or so and she looked at me kind of funny saying that he normally gets a snack after about a half an hour of work.
Now me and my sis were both getting kind of suspicious and so we knocked on Dan's door and barged in before he let us come in. Well anyway we caught Dan jackin off on his bed completly naked. And was it a site to see! I thought Kelsey (my sis)'s mouth was down to her jaw for about twenty minutes! Kelsey had never seen a real cock before and neither had I, at least in person and so we were both a little stunned. When Dan finally noticed us after a few minutes he tried to cover himself up before giving up and saying 'haven't you seen a guy jack off before?' In unison me and my sister both nodded no and he then told us to close the door.
I don't know about Kelsey, but trust me I jill maybe once or twice a day depending on how I feel. I don't know if Kelsey has ever 'touched herself' but she certainly seemed kind of horny by now. I then got up the courage and asked Dan if we could watch which he timidly replied that we could as long as he got something to jack off too... well I wasn't thrilled with the idea but both me and Kelsey stripped and Dan started jackin off to us. After a while I couldn't hold back anymore and started rubbin my clit like crazy and fingering my pussy with my left hand. But what shocked me most was that Kelsey started to do the same thing! I would of never thought my little sis would jill!
Anyway that afternoon led to a few wonderful orgasms for each of us and we planned on doing it again soon.
Once my sister left though, I then asked Dan if I could touch his cock and he agreed. After a while I began to jerk him off and he started moaning and going insane. 'Ohhhhh! Like that, like that!' And after about five minutes of stroking his cock he started breathing in shorter breaths and managed 'I'm gonna cummmmm!' at that he cummed all over his tight abs and chest. I was so turned on that I thought I'd almost cum right there.
My brother agreed to return the favor and started fingering my sopping wet pussy and rubbing my clit. It felt so great I loved it. I had never had anyone else do me like that before and I loved every minute of it! After about five minutes I started shaking and breathing quicker and had one of the best orgasms of my life!
Anyway we've had a little more time with Dan's 7 and a half inch cock and he's had a lot more time with my wet pussy.