Is it possible there was some kind of sexual encounter event from a v young age which has been lost in your subconscious, which has negative feelings of shame attached to it , which you have not dealt with yet?
Could your child like mind , put some kind of protection over your sexual organs which your adult mind needs to free you from ?
Am just putting it out there .. I have had some conversations with people who want to be anonymous.. this event which they have never spoken to anyone about , has been at the back of thier mind, and until they dealt with it (the adult mind finally telling them they are safe and free) they had certain trapped emotions around sex ..
Just putting it out there , is it possible there something deep rooted that you need to come to terms with and work on ? Some old story or protection mechanism of the mind which needs resolving ?
Something that is almost out of your conscious mind , but still there .