question: Hello doctor,I am 21 years old with weight 58 kg, and height 5'7". My penis size is 6 cm in normal, in erect it is 12 cm. Is this normal? What are the normal sex and ejaculation time? I feel very uncomfortable when I meet my girlfriend or talk with her in the phone about some hot topic because my penis becomes erect when she touch or hug me, and there is a seminal fluid is a discharge. What can I do for these problems?