Boyfriend masturbates sooo much..

My boyfriend masturbates LITERALLY 20 times a day if he has time. He claims that his doctor says he is horny all the time because he is a virgin. But I don't believe that he is telling the truth. And he says that he his a virgin but honestly I don't believe him.. If he is horny all the time and masturbates 20 times a day do you think he is a virgin or not?!