Monsters that Become Prisoners

After a monster assaults and has sex with a man, in the case that the monster liked the man, she won't release the man afterwards. She'll want to keep him at her side, continuing to have sex to gain mana. In this way, when a monster really likes a man, her instinct ends up recognizing him as her husband. Only female monsters exist, and human men are males to them. They do get married, but to monsters being married isn't just emotion and an agreement. Their interest and lust for the man who becomes their “husband” swells. They become extremely fond of the odor of his sweat, and the taste of his semen, and it highly arouses them. They end up having even greater “appetite” “lust” and “affection” for the man. On the other hand, their lust and interest in other men grows thin. Their energy tastes bland, or even disgusting. And then, they stop acknowledging men other than their “husband” as males or prey, and they only seek and have sex with their “husband.”

 

Monsters who have obtained a “husband” go through changes that are not just mental, but physical as well. Their already alluring body changes to match with their husband's, adapting into “a body just for their husband” to suit his tastes so they can get even more pleasure from their husband, and they can give their husband even more pleasure and make him happy, resulting in them being able to milk even more mana. Also, in human settlements where monsters coexist with humans, etc. where monsters live in places close to humans, if a monster develops feelings for a specific man, at that point, her instinct will recognize that man as her “husband”, and it's not uncommon for her body and heart to begin changing before she even assaults him and before they even have sex.

 

To monsters that have husbands, their husband is most precious to them and he takes priority over anything else. Having sex with their husband gives them more joy and pleasure than anything else, and they're happiest at that time. Even though the monsters are lustful hedonists, they treat the man they chose as their “husband” extremely wholeheartedly, and this is why they value him even more than they value themselves. There are many explanations for why this trait exists such as:

 

“To make it so that they don't fight over prey with other monsters.”

 

“By further charming the man and adapting to his body, they're able to obtain greater amounts of energy with more efficiency.”

 

But it is said that it may just be that this is simply because the personality of the current Demon Lord who changed the nature of the monsters to be as it is now is being reflected straight into the monsters' instinct.

 

Monsters can sense when a man is strongly stained with “demonic energy” or a monster's scent, and they can tell that that man is a “monster's husband” and whose husband he is. Among monsters, there is an implicit understanding that when a human man is already another monster's husband, he belongs to that monster, and they shouldn't assault him at random, so men who have become a monster's husband basically don't get assaulted by monsters. However, in the case that the monster really feels strongly about the man, or in the case of races that are fundamentally polygamous, that's not necessarily true.

 

If a monster feels so strongly about a man that her instinct has recognized the man as her “husband”, and she's already begun to change into a female exclusively for him, then there's no way she’s going to be able to ignore her intense desire merely because of something like an implicit understanding. She'll give in to the urge, assault the man, and fuck him. After that, the monsters who share a “husband” will end up living together, cooperating at times to milk energy from the man, and at other times, fighting over who gets to have sex with him longer and more often. Once this happens to a man, he'll have to catch all the desire of multiple lascivious monsters with his one body. He'll end up having to keep offering them large amounts of mana, every day switching off, or perhaps, doing all of them at the same time.

 

Diet of Monsters (p44)

Spirit Energy

Most monsters feed on the vital "spirit energy”, that human men have a lot of. They absorb it inside their body and convert it into “demonic energy”, the vital energy of monsters. For monsters, spirit is a delicious treat that is far better than any other kind of food. Monsters that obtain and taste spirit energy will be engulfed in powerful ecstasy and joy. Even monsters that mainly eat things besides energy can still take in energy and convert it to demonic energy. To them, a man's energy is a sweet treat.

 

Spirit energy is plentiful in human bodily fluids, especially semen. Besides drinking it through their mouth and ingesting it, they most prefer to milk it out using their vagina by having sex with a man. Since energy is mainly taken in through sex in this manner, while “sex” is an act of reproduction for monsters, at the same time it is also “feeding.” Additionally, the taste and smell of spirit energy lingers faintly on a man's body, and is comparatively thicker on the penis. Monsters can enjoy the taste by licking a man's body, or taking it in their mouth or vagina. For monsters, a man's very existence itself is like a sweat treat because he has spirit energy within his body that they can taste and enjoy by licking, sucking, and having sex, resulting in pleasure that soothes their body and heart.

 

For that reason, monsters say “Delicious.” or “Looks delicious.” when they see a human man, and they refer to sex as “eating”.

 

Since monsters build up demonic energy by obtaining spirit, monsters that have more sex with men and get more energy poured inside them generally become stronger individuals. The more powerful a monster becomes, the more spirit energy she requires, and they never get tired of consuming it. For monsters it's like a drug: the more they absorb, the more they want, so when more spirit energy is poured inside them, not only do they become more powerful, they grow into much more lustful monsters.

 

The spirit energy of each individual man has a distinctive feel and taste. Humans can't sense it, but monsters are sensitive to it, and because of that, it's possible for them to sense and distinguish the presence of individual men based on the trace amounts of spirit energy that a man scatters around.

 

Husband's Spirit energy

The taste of spirit energy is greatly influenced by the state of the monster when she ingests it. When they have sex, the quality of energy increases and the more powerful their love and desire for a man becomes. In other words, the energy of the man they recognize as their “husband” is the highest quality energy to a monster, and there is no better treat. Just having semen, which contains spirit, on the tip of their tongue will cause the scent of it to completely enrapture them, and if it is poured inside their womb, then they will be engulfed by the greatest happiness due to the sensation of being stained only by their husband and having their body and heart become full of their husband, along with the thick taste of their husband which they most prefer.

 

Once they taste their husband's spirit, not only does the energy of other men become unpalatable, it becomes so disgusting that it makes them feel like throwing up. Most monsters that have known the taste of their husband's energy become a prisoner of that energy, practically entering a state of semen addiction. Once this happens, sex with monsters improves: they offer stickier oral service, sexual intercourse becomes more frenetic and lasts longer, and they avariciously covet even the energy included in saliva, so kisses will change to become deeper and more lewd.

 

The odor they can sense from the faint energy released by their husband also fans their arousal and makes them unbearably horny, so if they smell it directly, their body and heart will melt into a sticky mess, and make them unable to think about anything but tasting their husband's spirit.

 

For them, it's best to have semen which includes energy poured into either their mouth or their womb, but having semen splatter on their body and having their body painted white with semen is never unpleasant to them. Even though they'd feel like it was a waste, having their whole body covered in their beloved husband's semen and its odor would allow them to sense their husband from all over their body and make them experience strong ecstasy whether they like it or not.

 

Once they're totally out of it, they will unconsciously scoop up the semen on their body with their fingers and carry it to their mouth, or spread it and rub it into their body even more to get the feeling and odor of the energy to remain on their body. Humans can't sense it, but as for monsters, especially those smelling their husband's mana, the thick, sweet scent strongly tickles their nostrils. Since it continues to linger for quite a while even after they wash it off, they can keep feeling happiness and joy from being indefinitely engulfed in the odor of their husband's energy.

 

The Other Stuff They Eat

Spirit energy is the greatest treat for monsters, but there are many of them that mainly eat food other than mana, and even monsters that mainly eat energy can also replenish nutrients by eating normal food.

 

There are also monsters that prefer to eat the raw flesh of wild animals or wild grasses, but their sense of taste is basically extremely similar to that of humans. With a few exceptions, monsters can also eat cooked stuff made with ingredients that are edible for humans. Among the monsters, there are many that seize men and keep them at their side, and perhaps for that reason, monsters seem to instinctively know what humans eat, and many cook to feed men.

 

Since monsters can survive just by having sex with men, eating normal food is often for other reasons besides getting basic nourishment. Even among monsters that primarily feed on mana, there are many that also taste and enjoy food purely for amusement. Also, since there are various foods with a variety of effects among the foods of the Demon Realm that improve sex with men such as fruits that boost monsters' charm and abilities, cause monsters to go into heat, or heighten sexual sensitivity, etc. there are many who periodically eat “prisoner fruits” as a dessert to enhance their own charm, and use the various ingredients of the Demon Realm to cook and eat “appetizers” which make sex with men more delicious. There are also monster chefs who specialize in such “appetizers”, and in the cities of the Demon Realm there are restaurants run by monster chefs that are said to be popular with monster and incubus couples.

 

Additionally, there are also nutritional supplements made using energy collected by "golems". They're drugs for monsters that can't get a human man, and a tiny amount replenishes a huge amount of energy compared to normal food, but since this energy that's not obtained through sex with men is bland and doesn't taste very good, it's basically not preferred. It tastes especially disgusting to monsters who have tasted their “husband's mana” at least once as described before, and it's not something they can bring themselves to drink.

 

Furthermore, it seems the monsters of the “age of the former Demon Lords” preferred to eat human flesh, but the monsters of the present have changed greatly, so they instinctively find the idea of killing and eating humans to be disgusting, and they wouldn't even consider it.