「To permit fluids dripping with incest」needs no explanation as TO FILL and TO EXTEND one's influence bonobo-style.
　Fill an area with small stones (paving 磚) to prevent vegetation growth and to permit rain runoff from a house eave to strike the ground but prevent splashing against a wall or passersby:「infertile stones.」
　Infertility also FILLS, EXTENDS, and spreads among the stones of a population pandemic with sexually transmissible infections and diseases.
　Testicles are the site of male gamete production, and not gamete storage that is the function of the prostate gland into which spermatozoa are FILLED after an EXTENDED journey through the vessels of the testes seminiferous tubules, epididymis, and vas deferens, often requiring a two-to-three-month timespan during which gamete seed maturation occurs. If the sperm are subjected to too much heat, they are rendered infertile, which is why the testicles are suspended in the scrotal sac and remain cooler than the internal body temperature (see 冬):
　「Once sperm cells are made, they begin the long process of maturation, which takes, on average, 72 days to complete. This concept plays a central role in defining therapy for men with fertility issues. The fact that men produce millions of new sperm every day [for healthy humans, 200-300 million per day] makes it highly beneficial to men who want to alter their lifestyle habits. Knowing that sperm take about 72 days to mature, men who do make lifestyle changes only need to wait about 3 months before seeing improvements in sperm quality and increasing your chance for reproductive success.」
　「The maturation process for sperm continues as they wind their way through the seminiferous tubules and into a slender, worm-like appendage outside the testicle called the epididymis. This gland, in turn, becomes the vas deferens, and sperm is carried out to the scrotum, up through the groin, into the pelvis, and ultimately into the prostate gland. The prostate gland and seminal vesicles produce the fluid released during orgasm and ejaculation called semen.」
　　[　https://www.shadygrovefertility.com/article/sperm-production-cycle/ 2016-01-15　]　

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: to fill; to extend
Unihan extended: fill, extend
EDRDG: fill; extend