There were three of us camping in a tent. I have a queen sized air mattress and so me and one of the other guys were sleeping on it.
Around the middle of the night I woke up and was very bored and could not fall back to sleep. I looked over at my bud and realized how hot he looked laying there. I got all hard and decided I would try something very bold. I reached over and under his sleeping bag and played around his thighs for about 30 minutes and finally let my hand rest on his hard cock.
I started to massage the shaft and head through his pants, I would go for about 15 minutes then stop, being afraid I would wake him up. This went on for several hours and in the morning I was still going about seven when we had to wake up.
He woke up and I was still going at it, he looked over at me and said what the hell are you doing?? I just looked at him and acted like I was asleep. I could hear him beating off next to me after we woke up. I went home for awhile after that and had the best orgasm I have had in a long time.