...
What hadn't occurred to me, however, is that the gym shorts where off-white in color, with no liner . . . and I didn't have anything on underneath. I went into the water and had a little swim, with the girls chatting on the beach nearby.
When I emerged from the water, I noticed that the shorts were quite "see through when wet" and, as they were soaking wet and clung to my body, my cock was quite visible and there was no way to hide it. We used to call the girl who gave me her shorts "blow job lips," and I think she knew what would happen when I got in the water, but ignorant and unassuming me, this hadn't even crossed my mind beforehand.
The girls obviously noticed my cock and I could feel their eyes on it. This made me kind of excited and my cock began to grow. I said, "ummm I hadn't thought that your shorts would become see through," I said to 'blow job lips,' I think I'm going to need that towel now." "Not so fast," she said. She and the other girls then giggled and chuckled a bit as they looked at my cock. Another girl said, "oh, it doesn't matter . . . " but the girls weren't even trying to be subtle about looking at my semi-erect and growing cock...