Hentai / Demon Beast Invasion (eng) flv

Earth is being invaded by a race of unclean beasts who wish to take over the planet.
However, since Earth's environment is hostile to the demons they hatch a plan to
impregnate as many human females as possible in order to create a race of human/demon
hybrids which will rule the Earth by proxy. But the "Interplanetary Mutual Observation
Agency" sends a duo of enforcers to Earth to hunt down and destroy the alien race they
call the 'demon beasts'.
volume 1
It's hungry for vengeance. She's hungry for more! One hundred million years
ago, an ecological disaster drove the Demon Beasts from our world. Now, they
must breed with human females to create a new, hybrid creature, who will
clear the way for an invading horde. When Kayo is raped by a possessed
lover, it's up to Interplanetary Mutual Observation Agent Muneto to save
her from the terrifying creature to which she gives birth: a mutant,
lust-driven Demon Beast!
volume 2
Kayo's demonic offspring lives and plots a diabolical family reunion with
its otherworldly brethren! The Interplanetary Observation Agency dispatches
a trio of beautiful female warriors to slay the invaders. But they're way
out of their league, and the demon beasts will have their revenge... and a
little lecherous fun!
volume 3
Terror... Treachery... and TENTACLES! Something evil slithers through
the Hong Kong underworld, seeking warm flesh and new victims. Many have
already succumbed to its perverse charms. But the Deamon Beast hungers
for more than just blood - it wants a human woman to possess - body and soul!