Plow Lucy first

"Alright Lucy. You win." He said as he approached her

"But Natsu!" Cana protested "I'm like, right heeere! And totally sexy!" She said, giving a cute wink and pose, her breasts bouncing

"That's true. You are. But firstly, Lucy is my roommate. And there's a sacred bond between roommates." He said

"I could like, room with you too!" She added "Just like, stay with me some nights!"

He hadn't considered that Cana might respond like that. She was meant to mimic Lucy's acts towards him. This counted. He could consider it later. Honestly roaming rooming might not be so bad. Different girl every night. But for now...

"Hm.. I'll think on it. But right now Lucy is my roommate, and it's my responsibility to fuck her. Isn't that right?"

"Like, totally Natsy!" She giggled, pressing her tits together sexily.

He really did want to fuck Cana. The woman had a practically perfect body. But there was something she needed to "learn" from Lucy first.