As a 10-12 year boy I had a friend who used to live in same locality as I and who was about 15-16 years of age. He once initiated sex with me without I feeling anything in particular. I enjoyed his attentionion and at times I used to offer myself to him. I left the town after about 2 years and after that I never had a sexual relation with any man. Today when I remember that I feel sometimes doing again once with a totaly stranger, although I love having sex with women much more and had sexual relation with 5/6 women. I do not understand this urge within me of having sex with strange man.