Hello, my question is related to sex issue. I am 35 year old now. My problem is that i don't have or feel interest doing sex. It is since i was young, means never had interest. But that didn't mean i never sex. I just don not feel to have sex even if i sleep with a naked girl, i can control myself to stop doing sex or feeling to sex, whereas i want to feel, i want my mind to think about sex that it didn't. One more problem that i face when i do sex is that my penis erection is full until it enters in vagina but as it enters in vagina it loses its erection.