This picks up later on the night of part 4. Check my post history to see the first 4 parts.
We went to dinner at a local seafood place. We were probably there for two hours. Not a word was said about what we had seen of each other since we had been at the beach.
We paid and walked along the beach to get back to the house. As we approached the house Mari asked if anyone was up for a swim. We all agreed that sounded like a good way to wind down the evening.
After walking in and closing the gate Mari flipped on the lights in and around the pool. I made the first move and stripped completely, laying my clothes on one of the poolside lounge chairs. The other three followed my lead and stripped as I stepped into the water.
I stayed in the shallow end of the pool while I watched them undress; my penis just below the water line. It was so hot seeing Kathryn and Mari side by side. After getting in Kathryn waded over to me and once we reached deeper water she wrapped her legs around me, bringing her pussy into contact with my floating flaccid dick.