Question about my boyfriend's semen?

What is the opposite of Viagra? No, guys don't produce enough to back up their seminal vesicles in 18 hours. He may be at the high end of the curve. Foreskin or lack thereof does not affect drive. It sounds like he is just a horny guy who is lucky enough to have you as a partner to make whoopee with. You say you enjoy him and love him, so I don't see a problem if you are willing to keep him cooled down. His drive may be partly psychological? Maybe you should talk to one of his old girlfriends. If you are still worried, drag him to a clinic.