question: Hi, I m a fourteen year old boy who is going through puberty and haven t has Any penis growth at all since birth, I m not fat and have Every sign of puberty as body hair, facial hair, acne and body oddurs, no muscle growth as I ve noticed myself aswell is my penis numb and the only sexual sensation I have is when i ejaculate. I m suspecting low testosterone levels to be the case bit I want to be sure. It might be because of genetics because my mother is asian although my father has a big penis, yes I ve seen it. when he gets out of showers. I don t Knowles how to confront him about that if low testosterone is why. Please answer /A confused teen