I was on vacation with my wife and her parents on a houseboat on very large lake with many nooks and crannies.
On the second morning I was very horny and wanted to take my wife out on the other powerboat we had and have some naked fun in the boat or on a hidden spot. She was past out and I could not wake her up for anything. So I went out anyway thinking I would just fish.
I started boating around, getting horny, and found a decent sized island with many large rocks and somewhat hidden.
There was no one out being 7am and middle of the week. I beached the boat and walked around. Something came over me and was very hard and horny. I needed to jack off.
I jerk off about 4-5 a times a week on account my wife does not enjoy penetration but loves to play around.
I found a comfortable rock in the sun, pulled off my clothes, and started to stroke my aching cock. It was incredible. The sun, open air, no one for miles, and my cock in my hand. The sooner I started stroking I came. All over the place. Cum on my stomach, my cock, the rock.