<s>[INST] 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 [/INST] Degree understand your concerns went through your details. I suggest you not to worry much. Please understand these type of negative sexual thoughts can only ruin your mental health. Let me assure you, big penis has nothing to do with increased sexual pleasure or female satisfaction. Those can happen only in porn movies. Even a 2-inch-long erect penis can satisfy a woman. Larger penis cannot give more pleasure because, female vagina has pleasure nerve endings within the first two inches. Please don't over burden yourself with anxious thoughts about sexual maturity and concentrate on your education and career. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck. </s>