At the time I was 15 and my sister was 13 she had two really hot girl friends who were at our house all the time.
One summer I came home and all three were in our pool they were wearing the tightest little bikini suits it would give any guy a hard on.
I went to our den where I could see the pool so I could watch them now there was my sister and one of her friends laying on the loungers their pussies toward me
I dropped my shorts and started to pump my cock. Suddenly I heard 'hey cool' from behind me. I turned and there was Alice my sisters friend who I thought was in the water. I still had my dick in my hand I pulled my shorts up as quick as I could Alice said please let me see more.
I was shocked to say the least and tried to leave but she was near the door and blocked my way. She said she would like to see more of me and if I don't she would tell my parents.
Then she went to the window opened it and told the other two girls to come into the den. She turned to me and said we all wanted to see my penis.
When my sister and her girl friend Shirley came in she told them she caught me jerking off and that I was gonna show all of them how it's done.
I didn't say anything I was shy but at the same time aroused. My sister said good I've wanted to see him naked for a long time.
Shirley was the first to move she stripped naked in a flash and said your turn big boy, take those clothes off. Well by this time I was as hard as a rock, the thought of the girls watching me was a super turn on.
I pulled off my t shirt and dropped my shorts my dick was standing up. Shirley said it was beautiful, it's the first one she's seen up close. She walked right to me got on her knees and started feeling my cock.
She turned to the other two and said come here take a good look. They both got on their knees on each side of Shirley who handed my cock to my sister who wrapped her hand around it but didn't do anything but hold it.
Alice started asking questions about my balls what are they? I explained as best as I could. My sister asked what jerking off was Shirley told her about how I was pumping my dick.
Shirley told the other two girls to strip which they did. Now I was looking at three beautiful pussies and I started pulling my dick. All three girls watched closely, I was so hot I just started to pump as quick as I could, it must have been less than two minutes when I let loose with a fantastic load all over the three girls. They screamed when I came and the cum hit them, then they laughed and sat back on their legs.
I was still hard. I heard girls can cum too so I asked Shirley if she came she said no but I will now. She leaned back and rubbed her pussy so did my sis and Alice. Shirley was shaking as she moaned she came first she reached up and felt my balls and pulled my dick. Alice came next and then my sister.
Shirley pulled me to the floor and put her head inches from my dick and pumped me, my sister was playing with my balls and Alice was rubbing my stomach and her own pussy. In a few minutes I shot another load all over myself Shirley and Alice. When I lifted my head there was my sister with one or two fingers in her pussy and moaning like mad.
We stayed on the floor and I spent the next two hours playing with all three pussies making them cum at least three times each, they took turns jerking me off for one more shot.
This became a regular thing with us every chance we got, they all became experts at handling cock