Is the penis a muscle or an organ? Is the penis a muscle or an organ?

Both, kind of. It is a reproductive organ, made up of muscles, blood vessels, connective tissue, nerves and other cellular structures. What difference does it really make what you call it?
The . The penis is the male sex organ, comprised of many tissues. It is not a muscle. To be more specific, the penis is not a muscle and can not shrink or be built by workout techniques.