I don't read many manga. << What's the synopsis?

There's only one chapter posted so far (though there's probably at least 20 published so far) but so far a hero comes to slay the Demon Queen to end a war that has spanned for generations. By the start of the chapter, the Queen has already asked him to be her hero instead, and the chapter follows with her giving him reasons why he should accept her offer. She cites that her death would do nothing for the situation because another ruler would just replace her, and explains how their world actually needs this war because it has unified humankind and demonkind against common enemies instead of constantly squabbling with their own kinds over territory battles.
She points out that many lives would die on both sides if the war were to end, and that by engaging in war, they actually save many lives on both sides. She pleads to the hero that it is the military's job to end the war but that it is the kings' and queens' jobs to find a better solution. So, her offer is to ask him to show her the world and all sorts of things she's never been able to see because of being cooped up in her castle, so that she could find a better solution than war.
She has nothing to pay him with since granting him land would only contribute to the territory struggles by giving one less piece of land to the demons and one more to the humans, but instead offers to use herself as payment.
In short: She basically offers to give herself to him as his wife if he will show her the world.

If you want to know how that ends, read the damned comic | D

That plot is quite unique instead of the dogmatic approach when concerning demons.

Yep! ^^

There's also a nice scene in the very beginning where the hero tries to accuse demons of doing various acts, which she justifies as things that the humans did to themselves.

Example: "Black skies? ...You never noticed they mine and burn COAL there, did you? D:"

Read the comic and I like it! Of course, we have no idea where it can go from here, but we'll have to wait. -3-

where might I find this comic so that I may support it, because I'm definitely interested?!?!

I'm not sure what this site's stance on legality is, so google "Maoyuu Maou Yuusha" and if you frequent any manga sites, it should be in the top five on the google search.

She doesn't get pregnant in it (that I know of) , but she IS quite pretty and it's a really interesting story XD;