I was 10yo my sister was 15yo. When our parents were at work my sister would sneak her boyfriend into the house, the rule was nobody was to be inside the house but us. Anyway my sister would have sex with her boyfriend.

Our bedrooms were at opposite ends and we could see into each others room if our doors were left open. Sometimes my sister would leave her door open and I could see them having sex and I would watch them through the opening behind my open door.

At first I thought it was just funny to see them grunting and making noises until one day I was watching and my dick got hard. Until then I don't remember being hard, but it sure felt good when I rubbed my dick.

Her boyfriend left soon after and I was in my bedroom with this raging erection and it wouldn't go away. I didn't know there was a lot more to learn about having a hard on but I was about to find out!

Suddenly my sister was banging on my door and I was trying to get my woody back in my pants before she came in. She took one look and saw my hand and obviously my erection. She called me a little perv and was I jerking off while they were fucking?

I started to cry not because of her calling me names but because I didn't know how to make the thing go down again. My sister suddenly realized I was in unknown waters and she started to laugh, which only made it worse! Then I guess she felt bad for me and told me to pull my pants down. I'm like no way I'm doing that, she says you want that little dick to go down?

With tears down my face I pulled my pants down and my dick came out like it was spring loaded and my sister started to laugh again. I started to pull my pants up but she stopped me and apologized.

She told me to stay and left the room, coming back a few moments with a bottle of hand lotion and a towel. She pulled my foot locker over and sat down on it and told me to stand in front of her. I did as she said as I watched her squeeze a big glob of lotion in her hand.

My sister didn't tell me what to expect but when she wrapped her lubed up hand around my dick I thought possible something could feel so good. She made jerking motions and round the head and back down again. It felt so great, I didn't know it was going to feel even better soon.

Suddenly I had this weird sensation that I never felt before. It started deep within and the more my sister rubbed my dick the better the feeling got. I was watching her hand work me up and every which way, globs of hand lotion dripped onto the floor but I didn't care now.

Whatever was happening it was getting closer and there wasn't words to describe how great my sister's hand felt now. She didn't even have to move her hand much now as this new sensation took me over.

I began to moan and my sister said I was getting close to cumming, whatever that was but the pleasure was better and better each passing moment. Suddenly she tells me to look and I see this weird fluid coming out of the tip of my cock. I'm standing there like gumby, my legs are shaking and I want to sit down so bad.

My sister grabs my balls and twists the head of my dick and then this wave of pleasure shoots through my entire body as this white fluid begins to squirt out of my dick. She's almost screaming now as it lands on her shirt and she squeezes my dick a few more times until that great feeling subsides.

She lets go and my dick is still hard and suddenly I'm scared again. My sister stands up with her hands covered in lotion and my juices and begins to wipe them on the towel. She tells me that will go down in a few minutes, she walks out of the room with me standing there looking at the mess on the floor.

Sure enough a few minutes pass and my dick goes back to the way it used to be. My sister comes back and throws a towel in my face telling me I better clean my mess up before our folks get home. She also reminds me I had better never say a word about any of this to anyone which I never did.