My family owns a house in Florida right on the ocean and we stay in the summer down there. My three brothers and I are allowed to bring one friend with us because it is a pretty big house. I brought my best friend, who I will call Drew. The first few weeks down there were fun. We all hung out together but after about a month we all started to do our own things. I hadn't masturbated during that month and since we were on vacation I took the opportunity to do it as much as possible.
I went down to a secluded area and went down into the water. I took off my bathing suit and started to pump. I then went to the shallow water and thrust my penis into the sand. It felt sooo good. I did this about three times a day everyday. I then asked Drew if he wanted to join me in these sessions. We had masturbated together for about as long as we both knew how to, about a year. He agreed, so when we went down to the beach we both thrust into the sand and watched our semen go out to sea.
After another month I needed a new routine so I decided to go to a nude beach. Drew came along for the fun. When we got there, there was a large number of young guys walking around in groups. As it turns out my 18 year old brother and his friend were in one of these groups so we joined them. They all had boners and Drew and I were growing fast, but no one seemed to care. After a while we were all getting pretty hot so Drew and I went back to our towels to put some more sun screen on.
Being out naked with all of these people was really erotic. I started to lube up my body and so did Drew. He then asked me to help him with his back. I started to rub it along his back and down to his ass. He then told me to make sure I get his ass really well. So I massaged it into his ass hole and all around. He turned over and asked if we should put the sun screen on our penises to make sure they didn't get burned. I said why not. So we both lubed up our hands and went at it. Our penises were probably both safe but we couldn't stop stroking. We started to scoot closer and closer together untill we were jacking each other. Then people started to form a circle around us and were having a circle jerk. Drew and I came at about the same time and then we just kept rubbing the semen all over each other.
The crowd then ejaculated all over us. We were completely covered with cum. People told us we could all go shower in the shower room. We all went in and had some more fun in there.