Kate pushes him to his back and straddles him. Not really starting anything, but she's not sure when this no fucking starts and if there's another fuck before he cuts her off, she's not complaining.

"Magnus and I understand each other." Kate grins down at him, sharp and fierce. She's not giving him up. No way. "You might've been hers first, but there's nowhere on this island she can hide from me if she hurts you."