The first time a boy has intercourse, there is no relationship with height development, sex (ejaculation) is not a factor affecting height. If you are a minor, growth and development has not yet ended, even if the first time no longer will continue to grow taller; if you are an adult, the bone scale line has closed, then even if you still retain the first time will not grow taller. Generally speaking, the height of the height mainly depends on genetic factors, in addition to the growth period of diet, exercise, sleep and other related. You can eat more protein and calcium-rich food, participate in physical exercise, and have a good routine, which will help you grow taller. In addition, do not have sex too early, and do not masturbate excessively, which is not beneficial to reproductive health, and is not conducive to male genital development. Even if you have sex, you must use condoms correctly throughout to prevent contracting sexually transmitted diseases.