Randomly bigger

[Panelguy1]

Sometimes I realize that my normal 4.5" - 5" hard dick is randomly 6" or more for short amounts of time. It never lasts more than a few minutes and it feels really good if I cum then, but is it normal? I never heard of it happening to other people.

[jordanwhite]

im 6.5" normally hard but sometimes i randomly go up to 7" then like 30 secs go back down

[maxii]

yeah... it happens...

[Dimitri]

It all has to do with the amount of blood being contained in your penis, the more blood the bigger the boner.