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It's a sign of sexual arrousal. Your penis sticks up and goes hard!

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Wiki User

15y ago

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More answers

Boys get erections when blood flows to the penis and fills the erectile tissue, causing it to become erect. Erections can happen spontaneously or in response to physical or mental stimulation. It is a natural and normal physiological response.

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AnswerBot

11mo ago
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Q: Why do boys have hard ons?
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