I was at the lake with some friends this weekend. A few of us had been out floating on some noodles out a 100 yards or so from the shore just floating and talking. My wife had decided it was time for her to go sit on the shore and sun tan for a while, and soon the group dwindled to just two of us. Myself and a friend of my wife and I, let's call her Ms P.
We had just been floating there and looking at those on the shore playing some volleyball or sunning on the beach. Not really talking to each other much. I'd glance over and catch her cleavage bouncing above the water when she wasn't looking and soon my mind drifted to sexual thoughts.
I've always been someone who wants to be an exhibitionist but I don't want to get caught for fear of reprisal.
I was not more than 10 feet from her, and I decided to go for it.
I pulled the front of my trunks down exposing my now semi hard cock. As I stared at her chest in the water fantasizing about her supple nipples just below the water line, I imagined that she was naked and doing the same thing as I.
I'd rub my member a little, then look down at it in the water, and make a comment about something random to her, just to get her attention every now and again.
She had no clue what I was doing, but I wanted to believe that in her absentminded state maybe she to was masturbating under the water thinking of me.
My dick grew in my hand and sometimes I would dangerously bob in the water leaning back so just the tip of my dick would stick out of the water, and then before she would look back my direction dip it back beneath the water line, and continue my stroking.
Ten feet of water was all that was separating my throbbing member and her tanned body. How I wanted her to question why my right hand hadn't come out of the water in a long time, and why my face was starting to tense up.
I couldn't take it any longer and grunted lightly as rope after rope of hot cum poured out of my dick into the water. It was fascinating to watch.
I was exhausted, and had to act like I had lost my balance and go under the surface of the water for a moment in order to pull up my shorts and regain my composure.
She looked my way asking me if everything was ok. I of course told her everything was great, and that I was just having a little fun.