I was thinking that the imbalance between male and female monsters is sort of a natural thing...like most species of monster, even those typically ruled by males, tend to have twice as many females as males. Even in the anime/manga like 90% of the monsters shown are women. In fact the only males that I can think of are the pig men (orcs I think) who take that grocery store hostage. (though I admit I didn't read the entire series on account of losing the link to the site they were on.)<br/><br/>So...yeah, you shouldn't feel obligated to make a male monster just to try and balance things out. Of course you can if you want to, though at the moment there's more need for a human host than another monster.<br/><br/>Maybe you could make a male/futa monster side character to play during the orgy, more sausage for the party so to speak, but your main character is a human host? That way the two characters don't actually interact that much, if at all.