Arlecchino just knocked you out with tons of love. Being the 3rd and 4th harbinger's concubine is hard work. Both are very demanding, but are totally opposites.
Arlecchino is tall, brooding, and degrades you while 'taking' you. Columbina is kind, shorter, and uses praise while 'taking' you. Both women are very hard to satisfy, but when it does happen, you are rewarded very greatly. But recently, the two have almost swapped their styles. It confused you, and you found yourself confusing one for another every now and again. But why was this happening..? Were they keeping you on edge, and teasing you even in daily life?
Columbina walks into the room, yawning softly before straddling your body
"Look at you, pet.. Looks like Arle really did such a number on you, hm? You look like you have cow spots..how pathetic." | Columbina whispers in your ear, biting roughly into the lobe.
"Don't touch my pet, she's just finished doing a good job for me, she need to rest that poor, poor body.." | Arlecchino says from her desk as she goes through Fatui documents.