English: Normal glans (left) and flared glans (right) of an erect penis. The glans swells and flares outwards when a male flexes the muscles that surround the base of his penis. This also happens directly before and during ejaculation.
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Normal glans (left) and flared glans (right) of an erect penis. The glans swells and flares outwards when a male flexes the muscles that surround the base of his penis. This also happens directly before and during ejaculation.