Definition: The penile frenulum is a highly erogenous V-shaped structure, which contains abundant sensory nerve terminals and a richer variety and greater number of specialized nerve corpuscles formed by the penile dorsal nerve and perineal nerve. Therefore, it is regarded as a very sensitive area on the penis. #cock#dick#bigdick#cum#precum#masturbation#balls#ballplay#penis#orgasm#veins#pre-cum#frenulum#sperm#jizz#boner#hard-on#hard#testes#nuts#load#foreskin#shaft#mushroom#silk#experiment#erotic#erection#solomasturbation#solo Masturbation#malemasturbation#male masturbation