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>The process of ejaculation is explosive—semen is blasted through the queen’s sting chamber and into the oviduct. The process is sometimes audible to the human ear, akin to a "popping" sound. The ejaculation is so powerful that it ruptures the endophallus, disconnecting the drone from the queen. The bulb of the endophallus is broken off inside of the queen during mating—so drones mate only once, and die shortly after. The leftover endophallus remaining in the queen’s vagina is referred to as the “mating sign”. The plug will not prevent the next drone from mating with the same queen, but may prevent semen from flowing out of the vagina.