Kokushibo and Doma had Sex..Doma was a human Female...

Kokushibo and Doma were panting on the bed when Muzan knocked on the door . Kokushibo instantly got up opening a door like Nakime dropping Doma though with his Kimono to cover Doma... Muzan never allowed Any Demon to be married to a human...

Doma was now in the woods laying on the dirt wrapped in Kokushibo's Kimono ... Kokushibo was only Protecting Doma from Muzan.. Kokushibo didn't want Muzan to know about him and Doma

Doma: Mmmh