Just wondering what is it that makes the size of your flaccid penis? like is it blood flow or whatever, just curious.

Here are...: From outside in, the bulk of penis consists of skin, subcutaneous fat, fascia (2 layers), thick fascia of the three cylinders with a pair in the front responsible for erection and a middle single one behind that pair of sponge body responsible for urethra to flow urine from bladder to the end of penis. There are ... For more detailing, go to the textbook of anatomy... Best ...