Pimpman was talking in layman's terms, seminal fluid is drawn from the blood combined with glucose in the prostate.
Pretty close, The testes contain coiled structures called seminiferous tubules, which are the sites of sperm production.The epididymis lies on top of the seminiferous tubules. Immature sperm migrate from the seminiferous tubules to the epididymis to mature and be stored. The mature sperm travel from the epididymis through the vas deferens. Its smooth muscle contractions propel the sperm forward. They arrive first at the ampulla, the widest part of the vas deferens, and then pass into the ejaculatory ducts. In the ejaculatory ducts, a liquid secretion from the seminal vesicles mixes with the sperm. Seminal fluid contains fructose sugar, which the sperm use as fuel.