@Phoenix32890,
I am an exact example of that. I have no interest in masturbation, or sexual fantasies, or even non-sexual intimacy (i.e., purely emotional relationship). I haven't born like that, but I lost all mentioned interests (I can say comprehensively) over the period of my 17-19 years old age, and even without experience of contact with some woman. I explain the reason; I became engrossed in physics since my childhood starting doing research at the age 14 at university-postgraduate level, aiming to solve the unsolved problem of Yang-Mills... Due to strong attraction and passion towards physics, studying were causing a high state of mind like a manic excitation, and even one masturbation was causing me to a very severe depression for even sometimes over a month, the mood that never heard from any other people (who were studying physics for job, ...); so I had press myself to get rid of any emotional and sexual interests and committed myself to be celibate. It's more than 8 years now I haven't done masturbation and never felt emotional or sexual interests (even to a bimbo).