Swallowing one's own sperm?

Hi everyone, I have a slightly strange question. I use my secondary account for obvious reasons. I'm a 15-year-old boy, and I masturbate quite frequently (about once a day). I've always wondered: is it possible to swallow one's own semen? I would particularly like to know if there are any risks of illness or anything else, and if you have already done this, what your opinion is on the matter?

Thank you very much in advance, and sorry for my English: I used Google Translate.