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Sperm gets ejected from the penis, enters the vagina, and swims up the reproductive tract until they reach the egg to fertilize it. Barely years ago, it was considered a major scientific breakthrough when scientists came up with the idea that a fully formed, tiny human inhabited the head of each sperm — totally debunked and untrue. Fortunately, as the human body has evolved over thousands of years to maximize fertility potential, so has our scientific understanding about sperm.
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Scientists estimate that approximately 1 in 20 men in North America are infertile, or unable to father children. More often, though, infertile guys can ejaculate just fine, but they have an issue with the quantity or quality of the sperm they're releasing. No matter what form it takes, infertility is highly distressing to men.
I didn't find any question or answer of the following kind in the archive so therefore my question. In what should have been a nice foreplay with a boy I'm gay while we had still both our underwear on, we were rubbing our underwear covered penisses so dry frottage on eachother. Amazingly he had an ejaculation, which I noticed when I suddenly saw wet sperm coming through his underwear.
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