Fandom - 'The Sentinel' with Jim and Blair.
It goes like this - it's AU, one of those universes where there are lots of Sentinels & Guides. And Sentinel/Guide pairs are matched up according to their genetic profiles. They bond sexually. (I know, this sounds like Saul's story, and reading it gave me this idea, but it's a lot more complex, trust me.)
Jim and Blair have never met before they find out that they are a matched set. When they do meet, things get weird. Blair is from a tribe that is very magical (i.e. mages, sorcerers, elves, fairies, whatever you want to use), but is also very unusual in his tribe. In fact, he is the only one of his kind. What kind, you ask?
He is a Changeling/Shapeshifter. Now, let me explain this. You know that Blair's Spirit Guide is the Wolf, so he can change into a wolf whenever he wants. That's the Shapeshifter part. Jim has been looking for a Guide for so long, because he needs a Shapeshifter Guide, whose DNA matches his. For this story, Blair is 21 (That's the only way this will work, trust me) and Jim is 27 or 28. The Changeling part is where it gets weird.
As a Changeling, Blair can become a woman (yes, I know this isn't exactly M-Preg, but since Blair's body would be male on the outside while he's pregnant, up until the time he goes into labor, I still thought I'd warn you.) in Blair's tribe, when a boy (or girl) reaches sexual maturity, there is a ceremony where a Shaman direct them down the path they must follow, the one that will lead to their mate. On Blair's 16th birthday, he turned into a woman for the first time (he had been able to turn into a wolf since birth). The Shaman said that since he was a Changeling, he would only be able to have kids in his female form, so his mate would have to be a man, which, according to his tribe, wasn't taboo. What was weird, is that most Changelings weren't Shapeshifters, and none were Guides; also, most Changelings were sterile, so this was a big thing, him being able to have kids. Blair has the idea to have him DNA profiled; you can use whatever reason you want, but his tribe mostly stays away from science, and uses magic instead, so his mother is a bit against it, but goes through with it when he explains his reasons (which can be anything from a vision telling him to do it, or the Shaman saying that it is his path to leave the tribe). When he his profiled, he finds out he is a Guide, so his mate must be a Sentinel. His mother doesn't want him to, but he lists himself as a Guide in the database they have to match up Sentinels and Guides. He also makes a decision on that day (here it, comes another weird part). Knowing that the Sentinel he matches up with will be his mate for life; he decides to wait to have sex until they meet. This is one of my kinks: virgin Blair. For some reason or other (Naomi taking his name off the list, a downed computer, the database Blair's profile is in not being connected to whatever database has Jim's profile in it, whatever you want to use) Jim and Blair don't meet until his 21st birthday. Once they do, and Jim's find out all this, (especially about Blair being a virgin), they talk and a few things come out. They are: Jim never having sex with a guy before, and not wanting to just jump into bed with Blair, seeing as how their first bonding would have to be with Blair as a woman, because of the Changeling thing. Now, another one of my kinks are stories with lots and lots and lots of sex in them, so after they bond as man and woman, they have to bond in a lot of other ways. As another one of my kinks is bestiality, when I say a lot, I mean a lot. The pairings are: man and man (both topping), man and wolf (Blair topping), man and panther (Jim topping, because Jim is the panther, remember, I said he was a Shapeshifter as well, and since his Spirit Guide is the Black Jaguar, well, there you go), Jaguar and woman (Jim topping, of course) and wolf and panther (both topping). Then, of course, they have sex again as man and woman, which is when Blair gets pregnant. How many children, and the circumstances of the birth, and whether or not they are Changelings is up to you (I really don't see a way that they could not be Shapeshifters, with both their parent as them). There are only a few no-no's in this challenge: I am a romantic at heart, and I believe in happily ever after, so...no rape, castration, slavery, or deaths of Jim, Blair, or their future kids, either in the womb or after birth.
Fandoms: The Sentinel Characters:
Jim Ellison/Blair Sandburg