Would you also consider adding futa Oni twin sisters/step sisters/close friends pair or futa Fūjin and futa Raijin sisters/step sisters/close friends pair as bosses in the future?
They don't have to be related, as the incest thing might be a problem 😂 but having a duo boss with similar look and fighting style could be fun. Having Bosses that's specifically designed to work as a pair together for their main gimmick could be an interesting fight.
They could have contrasting personalities but also love each other and do everything together, including sex.😍
One pair could have a shy and timid personality, while the other is more bold and hot headed. The bolder pair could constantly tease the shy pair, by making out with her, playing with her penis and fondling her balls.😘