My boyfriend first had sex when he was 13 . He had it for 2 months regularly. Then he never had till now. Now he is 17. In past year he masturbated around 2/3 years in a week. But since last 3 months he masturbated only for 3/4 times but he got ejaculation in dreams regularly almost. But when he got too horny he didn't ejaculate. He created too pressure. he recently got himself checked a vet and he told him that his dick will get smaller day by day for unusual sex and improper hormone system.