Hi guys, i'm 21 and been going out with my girlfriend for the past 6 months or so. She is a great girl and we are getting on really well However, when we come to have sex. She offen (80% of the time) feels pain and is uncomfotable, purely because she is not used to a penis of this size. Shes says that it is painful and that it really hearts when i put it inside her. I really like this girl and don't our sexual relationship to end because of this, please help me!!