I'm an illegal newly arrived in the US, and I get a gardening job, my employer then offers me a babysitting job. It's an actual baby, and I'm told duties include feeding, which obviously I assume from formula. The pay's good so I agree, me and the father have a drink, it turns out mine is spiked, and when I wake up, I have breasts though otherwise my body is still male. And not just breasts, but lactating ones - this is how I'm going to feed the baby. The dad tells me he will undo the change once the baby is weaned, and I have no choice but to go along if I ever want to return to normal - my choices are to get deported with breasts or to continue and eventually get turned back into a regular male and paid a lot of money.

As I live as the baby's nursemaid, my body gradually becomes more feminine, which I try to hide at first but it's rather pointless if you have to wear nursing bras. One day I'm nursing and I can see how lustfully my employer looks at my milk-engorged breasts, he comments how i'm becoming a hot chica and as soon as I'm done he lifts me up and takes me to his room, where he proceeds to rape my bubble butt ass. He mocks how little masculinity I have left, mocking my now peanut-sized balls and my little boy's dick, he tells me his was bigger when he was eight. Once he's done, he lays down the law: I'm going to dress 100% female from now on, skirts or dresses mandatory (nothing longer than knee-length), grow my hair long, wear nail polish (red, pink or glittery) all the time, etc. And, of course, bend over for him on demand. As it's the only way to eventually turn back, I have no choice but to agree. To seal the 'agreement,' I get on all fours... and soon my milk-swollen breasts are jiggling back and forth as he thrusts his cock in and out of my ass.

Next morning, my balls are gone and my dick is hidden underneath my bush. Eventually the remains of my scrotum become vaginal lips, as I'm helping set the table, I lean over and feel his cock brushing against my ass. I lean on the table for support, he raises my skirt, pulls down my panties and pops my cherry. From then on he fills my pussy with cum several times a day.
Eventually the day comes when the baby is officially weaned, and my employer chastises me for thinking nursing is infallible contraception - I'm pregnant, and he will only turn me back after I give birth. He then takes me shopping for maternity clothes. We continue to have regular sex during my pregnancy, and I sometimes role-play the pregnant hooker. Eventually I give birth, and as I'm breastfeeding my newborn, I make my decision. I beg him to let me remain a woman. He spells out his terms: I'll be his wife, and as he's always wanted a house full of kids, I'm going to be pregnant and/or lactating all the time for some years. I agree to all his terms, and then he admits it was all from the start a ploy to get himself his ideal wife. It doesn't matter, I want to be his wife and bear his babies.

Fast forward a bit, and I'm heavily pregnant with our second baby, I'm putting our firstborn to sleep in his crib, while I lean over I accidentally flash a little leg, my husband signals me to head for our room, I do so, and lie on the bed, I'm tired but there's no question of saying no, I lift my maternity dress (the only thing better than wearing a dress would be wearing a maternity dress, just like the only thing better than needing a bra is needing a nursing bra), he pulls down my panties and starts fucking me - I blurt out how much I love being a baby factory, how much I love being a piece of brown ass for his pleasure, etc. I can tell he's not listening, we both orgasm and he leaves. I just lie there a little, my pussy full of his cum, my tits swollen with milk and his baby in my wom, and I'm so happy.