After the intense ass anatomy session on the living room table, Namjoon looked at his watch and smiled proudly at Taehyung. “It’s getting late again, Taehyung. You should stay the night once more. No need to rush home.”

Taehyung rubbed the back of his neck, eyes flicking to Koo’s naked, red-spanked ass still on all fours on the table. “Professor… actually, can I study on Koo for some more time? It’s much easier to learn and remember when she stays in position like this. The real-life model helps a lot.”