Artist's commentary
Semen draining creature 1
(I saw [user/15097352] wondeful tentacles and tried to draw something similar.)
By the appearance it looks like ordinary flower, but it has long and narrow pistil extending out where it leaks nectar used to lure its prey. The nectar has a really sweet smell and even humans get attracted to it. The nectar also has a really strong apphrodisiac effect and just smelling it causes your body to heat up and even see illusions.
With the help of illusions the flower draws male genital near it, and then invades their testes through urethra with its pistil and drain all their semen. It's said the victims feel pleasure manyfold stronger than ordinary orgasm during this, and the pleasure keeps continuing as the flower slowly drains them over several hours.
Once the testes have become empty, the flower plants its seeds in them through the pistil. The seeded testes will start to produce the flower's nectar instead of semen. The testes will also go through change to store large amounts of the nectar and grow 2-3 times in size.
The nectar will rapidly produce in the testes, and if the victim doesn't masturbate to ejaculate, the nectar will start to overflow through urethra. However, the nectar is high in viscosity, thus there have been cases were the individual's power in ejaculation is insufficient and it will start to block their urethra. This nectar also contains the same apphrodisiac as the flower. Once the apphrodisiac nectar affects from inside the penis, the pleasure of orgasm will be uncomparable to anything before.
If you come across this flower and it seeds you, it is recommended to return home before ejaculating, as the nectar is really rich and will lure monster girls of the forest.