Did someone say Akame ga kill?
In an AU in which the first child was conceived AFTER Tatsumi got turned into a dragon and the manga’s ending, Tatsumi and Mine never stop having kids or sex. The new size difference between their reproductive organs caused them to be so addicted to rough sex that Mine stayed pregnant for the rest of her. Mine stays flat chested despite pregnancy. Even when mine is already pregnant Tatsumi still had sex with her with his dragon cock throughout every pregnancy and he can and does knocking her up even more during pregnancy because his sperm also acts as a form of gonadotropin medication, and child birth was difficult or even impossible for mine because tatsumi almost never pulls out of her pussy even after cumming because, as a dragon, he has no refractory period and the orgasms just make them both more horny. Being pregnant with dragon children stopped Mine from ageing so she and Tatsumi can keep having sex forever. Mine is reluctant to have sex while pregnant but gets onto Tatsumi’s dragon dick anyways out of her addiction to it. Minimum about of babies that Mine will be pregnant at a time with were decuplets and her pregnant belly gets so large and heavy that she is unable to move from the bed they have sex on and she has no choice but to were clothing that shows her pregnant belly. Tatsumi fucks Mine so hard during pregnancy that his dick penetrates her womb/cervix completely and ends up hitting the very top of her womb. They have sex even when they do not want to because Tatsumi’s dragon urges forces him to rape Mine 24/7 and he can only pull out long enough to let Mine give birth to one of their babies before being overwhelmed by his urge to put his dick back into her pussy. Tatsumi and Mine were trap in a never end pregnancy sex hell born from their own love for each other. P.S. I self insert as dragon Tatsumi in this.