master who buys a breeding slave and magically links to them, so that any time he gets anyone pregnant, the fetus will magically transplant into his slave's womb. it's a roundabout form of birth control, mostly to stop any woman he might accidentally get pregnant from chasing after him for child support, and he's tired of carrying condoms around.
his slave is almost full term with five babies when a sixth pops up. the magic speeds up its development to match its half-siblings (to prevent any complications from having babies at different stages crowded into one womb). the slave watches with dread as their already massive belly visibly swells even more. they're already so full that they can barely walk, and everything hurts, they have no idea how they're going to handle even a few weeks with an additional baby weighing them down.
they manage to drag themself to their master when he gets home and fall to their knees in front of him, begging him not to have any more unprotected sex, just until these babies come out, please. but he just sneers and dismisses them, telling them that he paid too much money for them to complain about doing the job he bought them for.
the slave goes into labor a few weeks later. it's their first birth (almost definitely not their last, but they're consciously choosing not to worry about that right now), so it's long and agonizing. they spend days groaning their way through contractions and desperate to just get this all over with. the master's personal healer is acting as their midwife, but she has other things to do and only occasionally checks in, leaving the slave to labor on their own.
finally they're dilated enough to push, and even through the pain of each baby stretching them out they feel relief that this is almost over. these babies are finally coming out of them. they're exhausted by the time the fifth one slips out of them, but they just have one more to go.
then, they feel it again. their belly swelling up with another transplanted baby. they scream in frustration. wonder why their master is choosing now, of all times, to do this. if he'd waited even one more day, the baby would have transplanted as a newly conceived fetus and they'd have at least a few weeks before they'd feel it, but the sixth baby they have yet to push out forces the new fetus to full term. their horror mounts as their belly swells again only seconds later. what is their master even doing right now?
they can't help but sob at the pressure of one of the babies descending into their birth canal. they'd been so close to this all being over. now they somehow have to stretch the scrap of energy they'd saved for pushing out the last baby across three of them. they're exhausted and sore, but they have no choice but to just keep pushing.
i need to experience this irl
