It was the summer after my my final year of high school when my friend Tom invited me to his place for the weekend. There was a concert on at the park down the street from his place, and I didn't have a car to get home afterward, so he suggested that we make a night of it.
I wasn't much of a drinker at the time, but we managed to get a case of beer, I think his big sister picked it up for him, so we had a few before grabbing a burger and heading out to the show in the park. During the show, there were three girls just in front of us that I thought were cute, but we didn't get anywhere with trying to talk them up about doing something after. The show ended earlier than I thought it would, and without our cute fellow concert-goers to distract us, we started to head downtown to see what kind of trouble we could get into, but it was quiet, and we ended up heading back to his place.
His family was pretty well off, the house was big and had an indoor pool and a large backyard. We had a couple more beers, and played some video, then I asked if we could go in the pool. Although I didn't think that anything would ever happen, I kind of secretly hoped that his sister would come home and join us in a bikini, so I could spy on her underwater.
We hopped in the pool, taking turns doing crazy shit off the diving board, and generally having fun. He grabbed a set of goggles, and made like he was looking at me underwater, but I couldn't see what he was doing until I grabbed goggles, and did the same thing to him. He was really just looking at me underwater, upside down, and being stupid. Once when he went under and looked at me, I turned around so that my butt was in his face, and pulled my shorts partially off, basically 'mooning' him. He laughed underwater and surfaced as I pulled my shorts up. Then he told me to look, and went under, spreading his legs and holding his knees to his chest. We both laughed and choked as we surfaced.
I pointed underwater, as though I had something to show him, and when he went under to look, I grabbed my shorts and pulled them up one leg so that my cock and balls hung out the side for him to see. He didn't laugh and surface, as I expected, rather he swam toward me, startling me. I kicked away immediately, thinking that he was going to do something to me, but he just surfaced with a disappointed look on his face. I didn't know what the look meant at that time.
Then, he pointed under, and when I put my goggles on, and went under to look, I saw that he'd done the same thing. I swam toward him, as though to scare him too, but he didn't move away, so when I got there, I went deeper and grabbed his knees, swimming between them. As I did, I turned over and looked at what he was showing me, and I swear it was starting to get hard, despite the cold water.
When I surfaced, he asked if I wanted another beer, or rather announced that he was going to get us more beers. When he got out of the water, I noticed that there was a bit of a hard-on, and was walking in a way to hide it, at least a little.
When he returned a minute later, he started to pour the beers into plastic glasses - he said that if the glass bottle broke in the pool deck, broken glass would be in the pool forever. He sat down on the side of the pool, took a sip, and set my beer between his legs. I still had my goggles on, so I went under the water, and swam toward him, surfacing between his feet. Leaving my goggles on, I grabbed the side of the pool to stay afloat, and grabbed the beer. When I took the tumbler away, I saw that his erection was sticking out the side of his shorts, pointing right at me, 12" away from my face!
I laughed, the same as we had before when I showed him mine underwater, and he just smiled and looked down at me.
Believe it or not, I didn't really clue in to what was going on, instead, I was just in 'goofing around' mode, and was just having silly fun, likely driven by the beer. I wasn't thinking about the girls that we hadn't been successful in partying with earlier, but I wasn't thinking about the possibility of having a gay sex experience that night with him.
I swam backward a foot or so, but still had a clear view of his crotch when he said "Alright, new house rule: You can wear goggles or shorts, but not both." Then he took a gulp of beer, put his goggles on, stood up and dropped his shorts before jumping in beside me. I still had my beer with me, and as I tried to keep the waves out of it, he swam over to me, saying "Rules are rules!- what's it going to be?" I was half thinking that he was joking, but he was clearly naked but for his goggles, and he was swimming toward me, indicating that I had to decide. He smiled and submerged, and went for my shorts. When I kicked away, he surfaced, and told me that if I didn't decide, he would.