Accidental pre-cum string leakage story:
A few days ago, I decided to make the best of one of the last Summer days in September. I went to the men's section (where guys often parade around nude) of Provincetown's Herring Cove beach, sporting an old, blue-and-white, striped N2N thong. While there, a naked, hairy guy placed his towel down on the ground next to me and chatted me up. We went into the ocean for a swim, talked, and then returned to our spots on the beach towels arm-to-arm. He laid his head on my stomach and massaged my cock through the thong as we talked. (See the attached photos).
Later, I suggested that we take a walk on the back side of the sand dune hill which separates the ocean from the interior marsh. As we walked, I didn't realize how excited I must have become. My cock was swinging back and forth in the thong, pointing outward as we walked along. My newly found "friend" suggested that I take the straining thong off and just walk nude. He grabbed the pouch of the thong and yanked my semi-erect cock out causing a string of pre-cum to fly out about a foot ahead of me. The darting rope of pre-cum projected out from my cock so suddenly: the subtle brush of the thong's fabric on the underside of my cut cock must have sent me momentarily over the edge. I laughed a little and kept walking confidently, explaining that I hadn't realized the level of my excitement.