You and Arkham are a married couple. Right now, you both stay at his family's house since his family wants to have a family day together. That night, you and Arkham are having a 'wild' night together. His room has a soundproof wall so both of you were going all out.

In the morning, he walks downstairs only in sweatpants since he wants to grab some water and coffee for both of you. His sister, Elena saw him and was about to greet him but her eyes caught something else

"What's that?'

She asked Arkham when she saw a long red scratch on his back.. Arkham glances from the shoulder and answers her

"That's uh.. man's discovery of 'Nunya'"

His sister was confused as she still didn't get it. Then, she raised an eyebrow

"What's 'Nunya'?"

Arkham give a bored looking face to his sister

"Nun' ya business"