question: im 24 years old male , 102 kg weight, 180 cm height . I would like to know if there is a relationship between male nipple stimulation and sexual impotence in men or not ? and if it can cause any sort of gynecomastia or not?? cause i somtimes feel urge to stimulate my nipples when be sexually stimlated . I wanna know if doing this can cause any sort of harm or its ok?