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Sperm banks in the UK and Australia have a little more trouble getting donations than banks in the United States because they aren’t allowed to pay people for their, ahem, contributions. But luckily, they’ve found something that’s even more valuable to guys than cold hard cash: their sense of masculinity. A study by City University London has examined the marketing strategies that sperm banks use to attract donors, and found that marketing that emphasizes donating sperm as a show of masculinity attracts more donors than other methods. "This is to say that if you give your sperm, you are a real man and you are better than all the other men who cannot do so for whatever reason," said Dr Laetitia Mimoun, the study's lead author.

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