Back in the 70's, I lived and worked summers on Cape Cod. Truro, to be exact.
Truro and other nearby areas are known for their nude beaches.
One thing I did, after finishing my summer job each day, was to check out the 'action' on the ocean-side nude beaches there. Sometimes, I'd take my clothes off (sans sneakers), stash my clothes, and walk the trail at the top of the dunes.
One hot, July day, after work, I was walking the dunes when I spotted a group of a dozen or so college-age women approaching where I stood on the trail. They were pretty much out of site, but I did see them approaching. They were dressed in typical summer tops and shorts.
Quickly, I stripped-down, stashed my clothes in a thicket, and walked slowly toward the girls.
As we approached one another, my uncircumsized cock grew and grew, until the foreskin was retracted all the way back, exposing its shiny mushroom head and lower shaft.
We passed on the narrow, scrub-covered sandy trail, with no one uttering a word. I watched each young woman's face as they smiled and then stared at my naked, 6'4" body and erect, swollen, slowly-swinging cock. Oh, what a turn-on!!!!
After we passed, I walked to the side of the sandy path and proceeded to vigorously stroke and pump my by-then-fully-engorged-and shaft-like-uncut-cock! Then, like a geyser, my cock exploded, sending a spurting flow of hot, sticky, steaming cum several feet onto the hot sand!!!