Erection

An erection is when a male’s penis becomes stiff, hard, and long. Erections occur for various reasons, such as sexual excitement or even spontaneously. Biologically, erections occur so a male can insert his penis into a vagina for sexual intercourse.

Erections usually begin to occur frequently after early puberty and continue for most of a man’s life. They are usually accompanied by a strong urge to have sex or masturbate. If a boy stimulates his erection continuously, he may experience a highly pleasurable feeling called orgasm, as well as the ejaculation of semen.

	This does not have any mainspace categories at all. You can help by adding categories.
	More…  Help by adding relevant categories to this . If there are less than 3, change this template to {{Few categories}}.