The water felt refreshingly cool, and I stayed under for a few seconds, swimming across the floor of the pool before surfacing. The rays from the sun felt hot on my skin immediately, making the water feel that much better. I wiped water from my face and out of my eyes, then heard another splash. I looked about to see who had decided to join me, but whoever it was, was still below the surface. Whichever sister of mine it was swam closer and closer, then surfaced right in-front of me with a splash. I cover my eyes instinctively, and when I opened them, I was greeted with a sultry...