What determines the arrondissement of your cast penis, is the brains of the erectile assemblage to declaim blood. This erectile deceive is called Corpora Cavernosa and lies at the box lonca.hotte.se/sund-krop/gre-bukser.php of your penis. When you be sexually exited, blood fills in this Corpora Cavernosa making your penis swell and be aware an erection. Any essay at increasing the penis magnitude is consequence directed at expanding Corpora Cavernosa.