Sorry I never got back to finish telling this story. If you have not read "Son Visits With His New Wife", you should read it first.
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The following day I was a bit apprehensive about how we would react to each other after the night's activities, but I really did not have to worry. Melanie and Matt met us in the breakfast room and everything seemed normal.
We had to get our food one at a time and then bring it back to the room to eat. Matt said that we should just eat together on the patio and Jeanie quickly agreed.
I will admit that being out on the patio in about the same spot I watched them fuck the night before was a bit exciting to me again.
Breakfast went off without any problems and we made our plans for the day. It was sunny and warm so we decided that we would go to the lake and enjoy a boat ride and then go swimming back by the hotel area.
After a beautiful but uneventful boat tour, we headed to the hotel to change into swimming suits. I threw my shorts on and Jeanie put on a modest bikini. We were dressed first and we headed down to the water.
When Melanie and Matt walked down, Melanie had a wrap on but still I could tell she was wearing a bikini.
Once they joined us at the water, Jeanie and I went into the water and then I looked back to see Melanie remove the wrap and saw she was wearing a thong bikini that was not modest at all. Jeanie caught me staring at Melanie and told me not to be a pervert.
When they got close to us, I could see that Melanie's nipples were partially visible through the fabric and it caused me to think about the night before and my dick started to harden.
Neither Jeanie or Matt are really strong swimmers, and when Melanie said she wanted to try to swim across the corner of the lake, they did not want to try. I jumped at the chance to be alone with her and we took off swimming.
While we were swimming over, she told me that she really enjoyed sucking my dick the night before and hoped that we would have more chances to play. I told her that we would have to be careful since Jeanie would not like it at all.
When we got close to the shore on the other side and could stand up, Melanie reached down and grabbed my dick through my shorts. She started rubbing it under the water and of course I took my chance and started touching her as well.
She reached down and pulled her thong to the side and said that I should get behind her. As I moved around behind her she fished my hard cock out of my shorts and moved so that I could enter her.
I looked back over to where Jeanie and Matt were and they were walking back up to the hotel.
Melanie told me not to worry about them, Matt knew that she planned to fuck me and he was keeping his mother busy so we had time to enjoy.
That allowed me to turn my full attention to Melanie and really enjoy her young tight body. I fucked her as we stood in water up to our chests and tried my best to make her scream.
I didn't succeed in making her scream but did manage to give her a decent orgasm before telling her I was going to cum. She told me to cum inside her and I started shooting my cum up into her seconds later.