Futica

Futica is a salary woman from Sweden who was moved to Japan thanks to the foster system and tries to conform to the societal norms of young men wearing themselves out in old stinking and hot office jobs. The only thing that has allowed her to go for so long is the sexual frustration she had to hide since she was little and which she now builds up until she goes to her foster parents where she will unleash her sexual tension on the mother which has already resulted in 3 little ones with blonde hair and large futanari penises. The only reason the father hasn't left is because he is also guilty because he came home drunk and walked in on his wife and foster daughter fucking and mistook it for a hallucination or dream and that Futica's dick was his own, except when he was at the back of the train fucking Futica, at which point he thought they were getting lesbian. When he woke up, he thought it was all a sinful dream until he caught them doing it on the couch, still going at it like wild dogs, leaving him with so many questions and almost resulted in him walking out until he realised the dripping cum from Futica's pussy, at which point he knew he was also guilty and simply decided to fuck it, rejoining the action.

To everyone's surprise, perplexion and delight, although they expected the highly virile futa to impregnate the ultra pent-up and beautiful fertile wife, no one expected the futa fertility to even be able to impregnate and BE impregnated by blank sperm. By a miracle, the 3 rejoiced in their happiness for finally fulfilling their wishes of having their own genuine family which has rekindled the couple's passion and allows them to engage in erotic nights until the baby inevitably makes it unsafe (unless it's Futica's dick in which case it is not only worth the risk but completely safe). But for now, all 4 children are being raised as Futica's parents' own and to everyone else, the family is relatively normal with them thinking they got donor sperm while inside, even the kids know who their real parents are.