I think the first time a semblance of a drop of semen ever emitted from the end of my early pubescent 13 year old penis was from fantasizing to one of the more well built high school cheerleaders after a high school homecoming game.
Perfectly shaped diamond calves, quads that looked like she was capable of squatting 3 or 4 plates for reps mixed with a dark tan of the islands, the gorgeous face of college senior, she truly had it all. Looking back to this day i would be hard pressed to find many sexual acts where I derived as much pleasure as that moment.