I should not be allowed out in public, especially in the summertime. Anytime I encounter a female, I immediately size her up sexually. Nothing as overtly degrading as ranking them on a numerical scale, but I do gauge my level of interest, often giving more desirable women a second, third, or even fourth leering look. This is worst when the weather is warmer, leading to skimpier outfits across the board. The absolute worst place for me to be, then, is a crowded waterpark, which is exactly where I spent this past Saturday.
My day was spent waiting in line for various water slides, checking out chicks in bikinis, trying to avoid getting (or at least having anyone notice I had) a boner. It was torture, but some of them looked so fine I practically bust right there in my trunks.
The park was open late, and I stayed until near closing time. By the time I ventured into the changing room to get out of my wet swimsuit and into some dry clothes, the park had mostly emptied out and I was left all alone in the dimly lit building. I walked past a few empty stalls before going into one, pulling the curtain shut behind me.
I was already shirtless, and untying the drawstring to my trunks and pulling them off was a breeze, so in no time, I was standing in the stall stark naked except for my sandals. I was in a private area with no one around, but the short walls between stalls combined with a curtain, and not a lockable door, being the only barrier between me and anyone else who might come in made it feel like I was out in the open, engaging in public nudity. I don't consider myself to be an exhibitionist, but that feeling of being naked out in public, in the moment, anyway, was a major turn-on. Thinking back on a few of the women I'd seen that day, some of the revealing bikinis and the barely concealed bodies beneath, combined with the excitement of feeling exposed, had me hard as a rock.
I touched myself gently, thrilled by the notion that I was doing it in public. My cock jumped as my fingertips brushed over it, nearly seven inches of hard manmeat jerking at my touch. Precum dribbled from my tip, primed, no doubt, from being constantly in some stage of erection the entire day. This made it difficult to get a proper stroke started, as it caused stickiness in spots, preventing my hand from sliding smoothly over my entire cock.
I dug in my bag and pulled out a bottle of suntan lotion, SPF 30, and squirted a handful into my palm. I readily applied this to my dick, slathering top and bottom with the white cream to facilitate masturbation.
Now amply lubricated, my hand glided along the length of my shaft, making that familiar "schluck" sound with each pump, a sound known to everyone who was once a teenage boy. It felt good, and I knew relief wasn't far away, thanks in no small part to all the sexy sights I'd seen throughout the day.
I froze when I heard a sound in the corridor. Another curtain closed, and I resumed stroking myself, too horny for release to wait. I took it slow, caressing myself softly in my fist, moving my hand deliberately, minimizing sound.
A minute or two later, and the curtain opened again, the occupant stepping back out into the corridor. I gave it a few seconds, then resumed my prior pace, picking up speed to get this mercifully over with. I closed my eyes, picturing in my mind the ample buttocks and cleavage I'd gotten glimpses of throughout the day, but I couldn't escape the feeling of being watched.
I looked around the stall and nothing was amiss, the curtain pulled shut on each side and no one in a neighboring stall. I bit my lip and whimpered quietly, knees turning inward as the pleasure within me grew.
"Ahhhhh..." I sighed, the sexual tension melting away with each pump of my fist.
I was getting close, and I wagered I'd cum in gallons given how horny I'd been all day. I started debating with myself where to shoot, not wanting to be an inconsiderate dick and leave a pile of cum on the floor for some kid to step in, when the curtain was flung open then pulled shut in one swift motion. Instinctively, I whirled around to see what the commotion was, forgetting that I was holding my erect cock in my hand. Accompanying me in the stall, mere inches away from me, stood a slender young man, old enough to enlist but probably not to drink, completely nude, boner in hand, jacking off while he looked at me.
"What the fuck are you doing?!" I demanded, dropping my cock to free my hand for self-defense, unintentionally leaving my boner to flop forward and poke into his taut stomach.
"Same as you, man. Just getting in a quick wank."
"Well go do it in your own stall!" I ordered, shouting a whisper at him.
