Those forever stamps are expensive. That's a lot of stamps. lol
Flex that muscle.! If you don't use it, you lose it.
Katy, the male penis is made up of tissue or basically it is a muscle. The 'morning wood or boner' we wake up with is sometimes caused by a sexual dream stimulation, but the main cause is because of oxygen we take in during our sleep. It is very similar to what weightlifters or fitness people call 'the pump'. When you workout you breath harder, take in more oxygen, and this increases the blood flow to your muscles, hence the bloated muscle being worked experiences 'the pump'.Being a medical professional, I shall just say the above is inventive indeed. For a good laymen's explanation, I dug up the below up for you. I don't believe in re-inventing the wheel.
During our sleep we get the same effect of additional blood flow due to extra oxygen while sleeping and it stimulates a lot of our muscles but especially the DICK. The boner is not a bone, it's a muscle, which is stimulated physiologically as well as psychologically. Originally Posted by ManSlut