Sun's Out, Dicks Out?

So school's out and instead of going home for the holidays this summer my friends and I decided to go on a trip to Europe, we're going to Milan, Barcelona, Majorca, Ibiza and we might do some more places! So when we got to Milan it was hot, I mean HOT! Beads of sweat gushing down our bodies hot, it was very difficult to do anything we planned to do! So instead of going sightseeing we decided to get our swimming started early by going to the amusement parks! There are three we went to, Gardaland, Movieland (which we had fun but that's not the purpose of this story) we then went to a waterpark, Aquaparadise which is pretty decent we got there early and were the first ones there, as soon as the gates opened we raced to the pools, set our stuff on the first sunbed we could find and just jumped in.. Now one of my buddies, we'll call him 'Micah', went to the changing rooms and didn't come back..I decided to go check on him and soon as I went near the lockers he was not there I went looking for him and couldn't find him so I decided to give him a call, when he answered he told me he was at the tourist shop and asked me where I was, we agreed to meet near the locker area, soon as he arrived he had the most serious look on his face that I've ever seen him have, he's normally more carefree than that, and then like a little boy started ranting about how he forgot to get his swim shorts with him and how he didn't find any at the tourist shop or they were too expensive...I understood how frustrated he was, it was a long way back to the apartment we had rented and he had paid a lot of money to spend a day there with us, so I reached in my swim shorts pocket and got my locker key (which was the stupidest place to put a locker key Micah did the same and he lost his and management had to bust his locker open..) and opened up my bag, Micah was like, Hey bro, what are you doing? Savin your ass, you're gonna fuckin owe me for this.. And without warning I slid my swim shorts off and tossed them at him, "try these on"... Micah's jaw dropped, he just stood there frozen and in as quick as you could think he started tugging at his cock while looking at me, I looked at his groin and he was rock hard, he was stroking it with one hand and holding the swim shorts in the other hand..it was very awkward, "what?" I said. "That's so fuckin sexy" he grunted.. Then a group of girls passed by the locker area and started making weird noises at which point I turned around and slid my boxers on..as I was putting them on Micah reaches from behind and tugs at my cock, "what the fuck dude?" I said pissed, he apologized and thanked me for the swim shorts. I spent the day swimming in my boxers everywhere because of him but we had fun and the pictures from that day came out alright too.. When we were about to leave after showering I headed back to check if we had left anything near the shower area and there was Micah stood over my swim shorts looking up with his eyes closed he must've thought no one was around, I saw him bust a big load over my swim shorts.. As soon as we got to the apartment he made an excuse to get in and pee when I was showering and it looked like he was stroking the shit out of his cock, he's also been referring to the day I stood naked in front of him and says shit like, "dominate me" or "guys you should see his ass" or "twerk for us" I need to go buy me some new swim shorts.. We are in Barcelona now and tomorrow we're going to the waterpark here, Illa Fantasia I think..hope he doesn't want to see me naked again..