This little story took place when I had a mexican girlfriend. She was extremly jealous. We planned to go out sailing one day. I was preparing the boat just for the two of us when a girl with a big round bubble butt appeared on the dock and walked by towards another boat at the other end. She started talking and just stood there next to another boat with people onboard. The beach was not far from this dock and girls in bikinis came very often over to the dock for a chance to go on a boat cruise for free. Seeing a girl in a bathing suit or bikini wasn't unusual around here but this girl with this big curvy ass was not something that we saw here every day.

I was undoing the lines and about to leave the dock with the boat. I must have just stood there and kept staring at her rear while she talked to the other group. This were actually pants that was wearing but way too small for her rear. Half of this wonderfull bubble butt was clearly visible without any textile covering it. A real huge bubble butt squeezed into a piece of cloth that was really not big enough. Even when she was laughing her butt moved up and down. What a view on a Sunday morning. Of course my girl noticed me staring at this wonderful view and yelled at me. UPS! Ok, lets get the boat going. To take my eyes of this butt was impossible. An idea just flashed into my mind: How about just standing behind her and slowly pull that ......... My girlfriend screamed at me!!!!

I went down on my knees again and untied the last line and realized that my cock was rock hard at that moment. My boxer shorts were not that small and luckily nobody could see what was going on inside there. The last line was off and I pushed to boat off the dock and jumped in. My girlfriend yelled something else but I was not really listening. She went below inside the boat and out of sight. I grabbed the tiller and sat down trying not to stare again and concentrate on getting out of the harbor. The boat slowly picked up some speed and went along the dock. My eyes were glued on that girl. No it wasn’t the girl it was just this half naked HUGE ASS in dark blue pants.

I can't even say if this girl was brunette or had just dark hair..... Now I had to turn left and I could not see my dream butt of the day any longer. I could barely concentrate on sailing. This round butt! My cock was hard and luckily nobody was close enough to see it sticking up. The original plan of the day was that we go on little romantic cruise. A bottle of wine with some snacks while we are sailing and then anchor the boat and maybe go for a swim. The boat just passed the last marked of the harbor and we were in the open waters of the bay.

Suddenly I noticed that below my girlfriend was starting to get undressed. Time for the swimsuits. She did not look at me and that was a clear sign that she was really angry. This had happened before when she became mad at me because I glanced at another girl. I could see that she took her shirt off and now her bra. No, she turned around just in time so I could not see those natural brown breasts. Both were not huge but really round and a real handful with sensitive nipples.
I was so horny now and this bubble butt was still on my mind. I really wanted to wank my cock and cum right here while steering the boat. She took her belt off and then slowly pushed her jeans down. She knew I was watching or least she was hoping on it. Now the show started or at least I finally realized that it had already started. She was shaking her butt slowly and pulled her jeans down and out of sight.

The only thing she was wearing now was this little piece of underwear. She did not look at me.... and then it slowly to go down over her ass.. and then she stopped! Bending forward with this little piece of underwear just covering not much of her ass! First the butt on the dock and now I am watching this show just a few feet away from me.