I've masturbated ever since I was 11 years old, and this story takes place when I was 12. I have masturbated together with other friends many times. One weekend, me and five friends went to another friend's house for the entire weekend. His parents were away from town, and the maid (who's known us all since we were five) stayed to take care of us all. She knows we all masturbate, because we were all caught by her many times.
On a Saturday morning, we all went to the pool. When one of my friends jumped into the pool, his shorts slid off and he was butt-naked. We all laughed. He then said it felt really good to swim naked. So, little by little, we each took our shorts off. After that, all was normal. We played water polo in the pool, all naked. It was really fun, but after a while, because of all the touching, we all had hard-ons. They were easily seen, and were noticed when we were stealing the ball from each other or something like that.
Then, me and three other friends went to the spa, which is right next to the pool. We all saw each other's boners, but didn't say anything. One of my friends accidentally passed his cock next to the jet, and said, 'Whoa!' He said the feeling of the jet on the penis is awesome! So the rest of the three of us tried it and loved it! When the others (who were still in the pool) saw what we were doing, they came into the spa and started doing it too. We all fit easily, since it can hold up to ten people. We kept saying when we were close to having an orgasm, and we all orgasmed at the same time. It was awesome!
After that, we stayed chatting in the spa. When we were hard again, we decided to go at it once more. After awhile, some people got out of the spa and jerked off in the pool. Others just jerked off in the pool area. Then, we began to masturbate each other, holding each other's cocks. It was so awesome!
After we all had our third orgasm, the maid came to call us for lunch, and said: 'Lunch is ready, but you masturbators better clean the pool area later on!' And we did, by means of more masturbation! We stayed naked for the rest of the weekend-even during sleep, watching TV, or playing video games-with numerous pauses for a quickie.